AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION JANUARY 13, 2004 REGISTRATION NO. 333-_________ - -------------------------------------------------------------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SB-2 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ------------------------ MANHATTAN PHARMACEUTICALS, INC. (Name of small business issuer in its charter) DELAWARE 8731 36-3898269 (State or jurisdiction (Primary Standard Industrial (I.R.S. Employer of incorporation or organization) Classification Code Number) Identification No.) 787 SEVENTH AVENUE, 48TH FLOOR NEW YORK, NEW YORK 10019 (212) 554-4525 (Address and telephone number of principal executive offices and principal place of business) COPIES TO: MR. NICHOLAS J. ROSSETTOS CHRISTOPHER J. MELSHA, ESQ. CHIEF FINANCIAL OFFICER MASLON EDELMAN BORMAN & BRAND, LLP MANHATTAN PHARMACEUTICALS, INC. 90 SOUTH 7TH STREET, SUITE 3300 787 SEVENTH AVENUE, 48TH FLOOR MINNEAPOLIS, MINNESOTA 55402 NEW YORK, NEW YORK 10019 TELEPHONE: (612) 672-8200 TELEPHONE: (212) 554-4555 FACSIMILE: (612) 672-8397 FACSIMILE: (212) 554-4545 (Name, address and telephone number of agent for service) APPROXIMATE DATE OF PROPOSED SALE TO THE PUBLIC: From time to time after the effective date of this Registration Statement, as shall be determined by the selling stockholders identified herein. If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.[ ] If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. [ ] _________________ If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. [ ] _________________ If delivery of the prospectus is expected to be made pursuant to Rule 434, please check the following box. [ ] -------------------- CALCULATION OF REGISTRATION FEE ========================================== ===================== ===================== ===================== ===================== PROPOSED MAXIMUM PROPOSED MAXIMUM TITLE OF EACH CLASS OF NUMBER OF SHARES TO OFFERING PRICE PER AGGREGATE AMOUNT OF SECURITIES TO BE REGISTERED BE REGISTERED(1) UNIT(2) OFFERING PRICE(2) REGISTRATION FEE - ------------------------------------------ --------------------- --------------------- --------------------- --------------------- Common stock, par value $.001 per share 21,029,163 $1.585 $33,331,223.36 $2,696.50 ========================================== ===================== ===================== ===================== ===================== (1) There is also being registered hereunder an indeterminate number of shares of common stock as shall be issuable as a result of a stock split, stock dividend, combination or other change in the outstanding shares of common stock. (2) Estimated solely for the purpose of calculating the registration fee in accordance with Rule 457 of the Securities Act based upon a $1.585 per share average of high and low prices of the Registrant's common stock on the OTC Bulletin Board on January 8, 2004. The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the Registration Statement shall become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.

- -------------------------------------------------------------------------------- A REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE - -------------------------------------------------------------------------------- OFFERING PROSPECTUS [MP Logo] MANHATTAN PHARMACEUTICALS, INC. 21,029,163 SHARES COMMON STOCK The selling stockholders identified on pages 34-39 of this prospectus are offering on a resale basis a total of 21,029,163 shares of our common stock, including 10,000,000 shares issuable upon conversion of our Series A Convertible Preferred Stock and 3,437,460 shares issuable upon the exercise of outstanding warrants. We will not receive any proceeds from the sale of these shares by the selling stockholders. Our common stock is quoted on the Over-the-Counter Bulletin Board under the symbol "MHTT." On , 2004, the last sale price for our common stock as reported on the OTC Bulletin Board was $ . ------------------- THE SECURITIES OFFERED BY THIS PROSPECTUS INVOLVE A HIGH DEGREE OF RISK. SEE "RISK FACTORS" BEGINNING ON PAGE 5. ------------------- NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED THESE SECURITIES OR DETERMINED THAT THIS PROSPECTUS IS TRUTHFUL OR COMPLETE. A REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE. The date of this Prospectus is , 2004.

TABLE OF CONTENTS PAGE ---- Prospectus Summary........................................................................................ 3 Risk Factors.............................................................................................. 5 Note Regarding Forward Looking Statements................................................................. 14 Management's Discussion and Analysis of Financial Condition and Results of Operations............................................................................. 15 Business.................................................................................................. 20 Management................................................................................................ 25 Security Ownership Of Certain Beneficial Owners And Management............................................ 31 Certain Relationships and Related Transactions............................................................ 32 Market for Common Equity and Related Stockholder Matters.................................................. 33 Use of Proceeds........................................................................................... 33 Selling Stockholders...................................................................................... 34 Plan of Distribution...................................................................................... 40 Description of Capital Stock.............................................................................. 42 Disclosure Of Commission Position On Indemnification For Securities Act Liabilities....................... 44 About This Prospectus..................................................................................... 44 Where You Can Find More Information....................................................................... 44 Validity of Common Stock.................................................................................. 44 Experts................................................................................................... 45 Changes in Certifying Accountant.......................................................................... 45 Financial Statements...................................................................................... F-1 2

PROSPECTUS SUMMARY This summary highlights information contained elsewhere in this prospectus or incorporated by reference in this prospectus. Because it is a summary, it may not contain all of the information that is important to you. Accordingly, you are urged to carefully review this prospectus and the documents incorporated into this prospectus by reference in their entirety. OUR COMPANY We are engaged in the business of developing and commercializing early-stage technologies, particularly biomedical and pharmaceutical technologies. We aim to acquire proprietary rights to these technologies, by license or acquiring an ownership interest, fund their research and development and eventually bring the technologies to market. We currently are researching and developing two biomedical technologies: oleoyl-estrone, an orally administered hormone which we believe can be used to treat obesity; and lingual spray propofol, a proprietary lingual spray technology to deliver propofol for pre-procedural sedation prior to diagnostic, therapeutic or endoscopic procedures. We were incorporated in Delaware in May 1993 under the name "Atlantic Pharmaceuticals, Inc." and, in March 2000, we changed our name to "Atlantic Technology Ventures, Inc." On February 21, 2003, we completed a "reverse" acquisition of privately-held Manhattan Research Development, Inc. (formerly Manhattan Pharmaceuticals, Inc.), a Delaware corporation. To effect this transaction, we caused Manhattan Pharmaceuticals Acquisition Corp., our wholly-owned subsidiary, to merge with and into Manhattan Research Development, with Manhattan Research Development surviving as our wholly owned subsidiary. In accordance with the terms of the merger, the outstanding common stock of Manhattan Research Development automatically converted into the right to receive an aggregate of approximately 80 percent of our outstanding common stock (after giving effect to the transaction). In connection with the merger, we also changed our name to "Manhattan Pharmaceuticals, Inc." Our executive offices are located at 787 Seventh Avenue, 48th Floor, New York, New York, 10019 and our telephone number is (212) 554-4525. Our Internet site is www.manhattanpharma.com. RECENT DEVELOPMENTS In January 2004, we completed a private placement of 3,368,637 shares of our common stock at a per share price of $1.10. After deducting commissions and other expenses relating to the private placement, we received aggregate net proceeds of approximately $3,444,000. We also issued to a placement agent engaged in connection with the private placement of 5-year warrant to purchase 336,864 shares of our common stock at a price of $1.10 per share. In November 2003, we completed a private placement of 1,000,000 shares of our newly-designated Series A Convertible Preferred Stock at a price of $10.00 per share. After deducting commissions and other expenses relating to the private placement, we received aggregate net proceeds of approximately $9.1 million. The Series A Convertible Preferred Stock accrues dividends at the rate of 5 percent per annum, payable in semi-annual installments. The dividends are payable in additional shares of preferred stock. Each share of Series A Convertible Preferred Stock is convertible into shares of our common stock at a conversion price of $1.10, or approximately 9.1 shares of common stock for each share of preferred stock converted. RISK FACTORS For a discussion of some of the risks you should consider before purchasing shares of our common stock, you are urged to carefully review and consider the section entitled "Risk Factors" beginning on page 5 of this prospectus. THE OFFERING The selling stockholders identified on pages 34-39 of this prospectus are offering on a resale basis a total of 21,029,163 shares of the following shares of our common stock: 3

o 3,368,637 shares of our outstanding common stock issued in connection with our January 2004 private placement; o 326,499 shares of our common stock issuable at a price of $1.10 per share upon the exercise of a warrant issued to a placement agent in connection with our January 2004 private placement; o 6,323,261 shares of our common stock issued in connection with a private placement by Manhattan Research Development, Inc. prior to that company's merger with us in February 2003, of which 2,100,195 shares are issuable at a price of $0.70 per share upon the exercise of outstanding warrants issued in connection with that private placement; o 10,000,000 shares of common stock are issuable upon the conversion of our Series A Convertible Preferred Stock, which includes 1,000,000 shares of common stock issuable upon conversion of shares of Series A Preferred Stock to be issued as payment of dividends through November 2005; o 909,090 shares issuable at an exercise price of $1.10 per share upon the exercise of outstanding warrants issued as compensation to placement agents (and their assigns) in connection with our Series A Convertible Preferred Stock offering; o 101,676 shares issuable at a price of $0.70 per share upon the exercise of warrants issued to scientific advisors. Common stock offered ......................................... 21,029,163 shares Common stock outstanding before the offering(1) .............. 26,731,033 shares Common stock outstanding after the offering(2) ............... 40,168,493 shares Common Stock OTC Bulletin Board symbol ....................... MHTT - --------------- (1) Based on the number of shares outstanding as of January 12, 2004, not including (a) 5,357,889 shares issuable upon exercise of various warrants and options to purchase common stock; or (b) shares issuable upon the conversion of the Series A Preferred Stock. (2) Assumes the issuance of all shares offered hereby that are issuable upon conversion of our Series A Preferred Stock or upon exercise of warrants. 4

RISK FACTORS An investment in our common stock is very risky. You may lose the entire amount of your investment. Prior to making an investment decision, you should carefully review this entire prospectus and consider the following risk factors: RISKS RELATING TO OUR BUSINESS WE CURRENTLY HAVE NO PRODUCT REVENUES AND WILL NEED TO RAISE ADDITIONAL CAPITAL TO OPERATE OUR BUSINESS. To date, we have generated no product revenues. Until, and only if, we receive approval from the U.S. Federal Drug Administration or FDA, and other regulatory authorities for our product candidates, we cannot sell our drugs and will not have product revenues. Therefore, for the foreseeable future, we will have to fund all of our operations and capital expenditures almost exclusively from our cash on hand. We will need to seek additional sources of financing, which may not be available on favorable terms, if at all. If we do not succeed in raising additional funds on acceptable terms, we may be unable to complete planned pre-clinical and clinical trials or obtain approval of our product candidates from the FDA and other regulatory authorities. In addition, we could be forced to discontinue product development, reduce or forego sales and marketing efforts and forego attractive business opportunities. Any additional sources of financing will likely involve the issuance of our equity securities, which will have a dilutive effect on our stockholders. WE ARE NOT CURRENTLY PROFITABLE AND MAY NEVER BECOME PROFITABLE. We have a history of losses and expect to incur substantial losses and negative operating cash flow for the foreseeable future, and we may never achieve or maintain profitability. Even if we succeed in developing and commercializing one or more of our product candidates, we expect to incur substantial losses for the foreseeable future and may never become profitable. We also expect to continue to incur significant operating and capital expenditures and anticipate that our expenses will increase substantially in the foreseeable future as we: o continue to undertake pre-clinical development and clinical trials for our product candidates; o seek regulatory approvals for our product candidates; o implement additional internal systems and infrastructure; o lease additional or alternative office facilities; and o hire additional personnel. We also expect to experience negative cash flow for the foreseeable future as we fund our operating losses and capital expenditures. As a result, we will need to generate significant revenues in order to achieve and maintain profitability. We may not be able to generate these revenues or achieve profitability in the future. Our failure to achieve or maintain profitability could negatively impact the value of our common stock. WE HAVE A LIMITED OPERATING HISTORY UPON WHICH TO BASE AN INVESTMENT DECISION. We have no other business or prospects other than the business and prospects that we assumed when acquiring Manhattan Research Development in February 2003 and those acquired subsequent to that time. When we acquired it in February 2003, Manhattan Research Development was a development-stage company and has not yet demonstrated any ability to perform the functions necessary for the successful commercialization of any product candidates. The successful commercialization of our product candidates will require us to perform a variety of functions, including: 5

o continuing to undertake pre-clinical development and clinical trials; o participating in regulatory approval processes; o formulating and manufacturing products; and o conducting sales and marketing activities. Since inception, Manhattan Research Development's operations have been limited to organizing and staffing, and acquiring, developing and securing our proprietary technology and undertaking pre-clinical trials of principal product candidates. These operations provide a limited basis for you to assess our ability to commercialize our product candidates and the advisability of investing in our securities. WE MAY NOT OBTAIN THE NECESSARY U.S. OR WORLDWIDE REGULATORY APPROVALS TO COMMERCIALIZE OUR PRODUCT CANDIDATES. We will need FDA approval to commercialize our product candidates in the U.S. and approvals from the FDA equivalent regulatory authorities in foreign jurisdictions to commercialize our product candidates in those jurisdictions. In order to obtain FDA approval of any of our product candidates, we must submit to the FDA a New Drug Application, or NDA, demonstrating that the product candidate is safe for humans and effective for its intended use. This demonstration requires significant research and animal tests, which are referred to as pre-clinical studies, as well as human tests, which are referred to as clinical trials. Satisfaction of the FDA's regulatory requirements typically takes many years, depends upon the type, complexity and novelty of the product candidate and requires substantial resources for research, development and testing. We cannot predict whether our research and clinical approaches will result in drugs that the FDA considers safe for humans and effective for indicated uses. The FDA has substantial discretion in the drug approval process and may require us to conduct additional pre-clinical and clinical testing or to perform post-marketing studies. The approval process may also be delayed by changes in government regulation, future legislation or administrative action or changes in FDA policy that occur prior to or during our regulatory review. Delays in obtaining regulatory approvals may: o delay commercialization of, and our ability to derive product revenues from, our product candidates; o impose costly procedures on us; and o diminish any competitive advantages that we may otherwise enjoy. Even if we comply with all FDA requests, the FDA may ultimately reject one or more of our NDAs. We cannot be sure that we will ever obtain regulatory clearance for our product candidate. Failure to obtain FDA approval of any of our product candidate will severely undermine our business by reducing our number of salable products and, therefore, corresponding product revenues. In foreign jurisdictions, we must receive approval from the appropriate regulatory authorities before we can commercialize our drugs. Foreign regulatory approval processes generally include all of the risks associated with the FDA approval procedures described above. 6

OUR PRIMARY PRODUCT CANDIDATES ARE IN EARLY STAGES OF CLINICAL TRIALS. Our primary product candidates, oleoyl-estrone and lingual spray propofol, are in the early stages of development and require extensive pre-clinical testing before we can proceed to clinical trials. In addition, before we can commence clinical trials in the United States on our product candidates, we will have to submit an Investigational New Drug application, or "IND," to the FDA. We cannot predict with any certainty if or when we might submit an IND for regulatory approval of our product candidates. CLINICAL TRIALS ARE VERY EXPENSIVE, TIME-CONSUMING AND DIFFICULT TO DESIGN AND IMPLEMENT. Human clinical trials are very expensive and difficult to design and implement, in part because they are subject to rigorous regulatory requirements. The clinical trial process is also time consuming. We estimate that clinical trials of our product candidates will take at least several years to complete. Furthermore, failure can occur at any stage of the trials, and we could encounter problems that cause us to abandon or repeat clinical trials. The commencement and completion of clinical trials may be delayed by several factors, including: o unforeseen safety issues; o determination of dosing issues; o lack of effectiveness during clinical trials; o slower than expected rates of patient recruitment; o inability to monitor patients adequately during or after treatment; and o inability or unwillingness of medical investigators to follow our clinical protocols. In addition, we or the FDA may suspend our clinical trials at any time if it appears that we are exposing participants to unacceptable health risks or if the FDA finds deficiencies in our IND submissions or the conduct of these trials. THE RESULTS OF OUR CLINICAL TRIALS MAY NOT SUPPORT OUR PRODUCT CANDIDATE CLAIMS. Even if our clinical trials are completed as planned, we cannot be certain that their results will support our product candidate claims. Success in pre-clinical testing and early clinical trials does not ensure that later clinical trials will be successful, and we cannot be sure that the results of later clinical trials will replicate the results of prior clinical trials and pre-clinical testing. The clinical trial process may fail to demonstrate that our product candidates are safe for humans and effective for indicated uses. This failure would cause us to abandon a product candidate and may delay development of other product candidates. Any delay in, or termination of, our clinical trials will delay the filing of our NDAs with the FDA and, ultimately, our ability to commercialize our product candidates and generate product revenues. In addition, our clinical trials involve a small patient population. Because of the small sample size, the results of these clinical trials may not be indicative of future results. PHYSICIANS AND PATIENTS MAY NOT ACCEPT AND USE OUR DRUGS. Even if the FDA approves our product candidates, physicians and patients may not accept and use them. Acceptance and use of our product will depend upon a number of factors including: o perceptions by members of the health care community, including physicians, about the safety and effectiveness of our drugs; 7

o cost-effectiveness of our product relative to competing products; o availability of reimbursement for our products from government or other healthcare payers; and o effectiveness of marketing and distribution efforts by us and our licensees and distributors, if any. Because we expect sales of our current product candidates, if approved, to generate substantially all of our product revenues for the foreseeable future, the failure of any of these drugs to find market acceptance would harm our business and could require us to seek additional financing. OUR DRUG-DEVELOPMENT PROGRAM DEPENDS UPON THIRD-PARTY RESEARCHERS WHO ARE OUTSIDE OUR CONTROL. We will depend upon independent investigators and collaborators, such as universities and medical institutions, to conduct our pre-clinical and clinical trials under agreements with us. These collaborators will not be our employees and we cannot control the amount or timing of resources that they will devote to our programs. These investigators may not assign as great a priority to our programs or pursue them as diligently as we would if we were undertaking such programs ourselves. If outside collaborators fail to devote sufficient time and resources to our drug-development programs, or if their performance is substandard, the approval of our FDA applications, if any, and our introduction of new drugs, if any, will be delayed. These collaborators may also have relationships with other commercial entities, some of whom may compete with us. If our collaborators assist our competitors at our expense, our competitive position would be harmed. WE WILL RELY EXCLUSIVELY ON THIRD PARTIES TO FORMULATE AND MANUFACTURE OUR PRODUCT CANDIDATES. We have no experience in drug formulation or manufacturing and do not intend to establish our own manufacturing facilities. We lack the resources and expertise to formulate or manufacture our own product candidates. We currently have no contract for the manufacture of our product candidate. We intend to contract with one or more manufacturers to manufacture, supply, store and distribute drug supplies for our clinical trials. If any of our product candidates receive FDA approval, we will rely on one or more third-party contractors to manufacture our drugs. Our anticipated future reliance on a limited number of third-party manufacturers, exposes us to the following risks: o We may be unable to identify manufacturers on acceptable terms or at all because the number of potential manufacturers is limited and the FDA must approve any replacement contractor. This approval would require new testing and compliance inspections. In addition, a new manufacturer would have to be educated in, or develop substantially equivalent processes for, production of our products after receipt of FDA approval, if any. o Our third-party manufacturers might be unable to formulate and manufacture our drugs in the volume and of the quality required to meet our clinical needs and commercial needs, if any. o Our future contract manufacturers may not perform as agreed or may not remain in the contract manufacturing business for the time required to supply our clinical trials or to successfully produce, store and distribute our products. o Drug manufacturers are subject to ongoing periodic unannounced inspection by the FDA, the DEA, and corresponding state agencies to ensure strict compliance with good manufacturing practice and other government regulations and corresponding foreign standards. We do not have control over third-party manufacturers' compliance with these regulations and standards. 8

o If any third-party manufacturer makes improvements in the manufacturing process for our products, we may not own, or may have to share, the intellectual property rights to the innovation. We may be unable to identify manufacturers on acceptable terms or at all because the number of potential manufacturers is limited and the FDA must approve any replacement contractor. This approval would require new testing and compliance inspections. In addition, a new manufacturer would have to be educated in, or develop substantially equivalent processes for, production of our products after receipt of FDA approval, if any. OUR THIRD-PARTY MANUFACTURERS MIGHT BE UNABLE TO FORMULATE AND MANUFACTURE OUR DRUGS IN THE VOLUME AND OF THE QUALITY REQUIRED TO MEET OUR CLINICAL NEEDS AND COMMERCIAL NEEDS, IF ANY. Our future contract manufacturers may not perform as agreed or may not remain in the contract manufacturing business for the time required to supply our clinical trials or to successfully produce, store and distribute our products. Drug manufacturers are subject to ongoing periodic unannounced inspection by the FDA, the DEA, and corresponding state agencies to ensure strict compliance with good manufacturing practice and other government regulations and corresponding foreign standards. We do not have control over third-party manufacturers' compliance with these regulations and standards. If any third-party manufacturer makes improvements in the manufacturing process for our products, we may not own, or may have to share, the intellectual property rights to the innovation. Each of these risks could delay our clinical trials, the approval, if any of our product candidates by the FDA or the commercialization of our product candidates or result in higher costs or deprive us of potential product revenues. WE HAVE NO EXPERIENCE SELLING, MARKETING OR DISTRIBUTING PRODUCTS AND NO INTERNAL CAPABILITY TO DO SO. We currently have no sales, marketing or distribution capabilities. We do not anticipate having the resources in the foreseeable future to allocate to the sales and marketing of its proposed products. Our future success depends, in part, on our ability to enter into and maintain such collaborative relationships, the collaborator's strategic interest in the products under development and such collaborator's ability to successfully market and sell any such products. We intend to pursue collaborative arrangements regarding the sales and marketing of our products, however, there can be no assurance that we will be able to establish or maintain such collaborative arrangements, or if able to do so, that they will have effective sales forces. To the extent that we decide not to, or are unable to, enter into collaborative arrangements with respect to the sales and marketing of its proposed products, significant capital expenditures, management resources and time will be required to establish and develop an in-house marketing and sales force with technical expertise. There can also be no assurance that we will be able to establish or maintain relationships with third party collaborators or develop in-house sales and distribution capabilities. To the extent that we depend on third parties for marketing and distribution, any revenues we receive will depend upon the efforts of such third parties, and there can be no assurance that such efforts will be successful. In addition, there can also be no assurance that we will be able to market and sell our product in the United States or overseas. IF WE CANNOT COMPETE SUCCESSFULLY FOR MARKET SHARE AGAINST OTHER DRUG COMPANIES, WE MAY NOT ACHIEVE SUFFICIENT PRODUCT REVENUES AND OUR BUSINESS WILL SUFFER. The market for our product candidates is characterized by intense competition and rapid technological advances. If our product candidates receive FDA approval, they will compete with a number of existing and future drugs and therapies developed, manufactured and marketed by others. Existing or future competing products may provide greater therapeutic convenience or clinical or other benefits for a specific indication than our products, or may offer comparable performance at a lower cost. If our products fail to capture and maintain market share, we may not achieve sufficient product revenues and our business will suffer. 9

We will compete against fully integrated pharmaceutical companies and smaller companies that are collaborating with larger pharmaceutical companies, academic institutions, government agencies and other public and private research organizations. Many of these competitors have product candidates that will compete with ours already approved or in development. In addition, many of these competitors, either alone or together with their collaborative partners, operate larger research and development programs and have substantially greater financial resources than we do, as well as significantly greater experience in: o developing drugs; o undertaking pre-clinical testing and human clinical trials; o obtaining FDA and other regulatory approvals of drugs; o formulating and manufacturing drugs; and o launching, marketing and selling drugs. DEVELOPMENTS BY COMPETITORS MAY RENDER OUR PRODUCTS OR TECHNOLOGIES OBSOLETE OR NON-COMPETITIVE. Companies that currently sell both generic and proprietary anti-obesity compounds formulations include among others Abbot Laboratories, Inc., Amgen, Inc., and Regeneron Pharmaceuticals, Inc. Alternative technologies are being developed to treat obesity and overweight disease, several of which are in advanced clinical trials. In addition, companies pursuing different but related fields represent substantial competition. Many of these organizations competing with us have substantially greater capital resources, larger research and development staffs and facilities, longer drug development history in obtaining regulatory approvals and greater manufacturing and marketing capabilities than we do. These organizations also compete with us to attract qualified personnel, parties for acquisitions, joint ventures or other collaborations. IF WE FAIL TO ADEQUATELY PROTECT OR ENFORCE OUR INTELLECTUAL PROPERTY RIGHTS OR SECURE RIGHTS TO PATENTS OF OTHERS, THE VALUE OF OUR INTELLECTUAL PROPERTY RIGHTS WOULD DIMINISH. Our success, competitive position and future revenues will depend in part on our ability and the abilities of our licensors to obtain and maintain patent protection for our products, methods, processes and other technologies, to preserve our trade secrets, to prevent third parties from infringing on our proprietary rights and to operate without infringing the proprietary rights of third parties. To date, we hold the exclusive licenses to certain patent rights, including rights under U.S. patents and U.S. patent applications, as well as rights under foreign patents and patent applications. We anticipate filing additional patent applications both in the U.S. and in other countries, as appropriate. However, we cannot predict: o the degree and range of protection any patents will afford us against competitors including whether third parties will find ways to invalidate or otherwise circumvent our patents; o if and when patents will issue; o whether or not others will obtain patents claiming aspects similar to those covered by our patents and patent applications; or o whether we will need to initiate litigation or administrative proceedings which may be costly whether we win or lose. 10

Our success also depends upon the skills, knowledge and experience of our scientific and technical personnel, our consultants and advisors as well as our licensors and contractors. To help protect our proprietary know-how and our inventions for which patents may be unobtainable or difficult to obtain, we rely on trade secret protection and confidentiality agreements. To this end, we require all of our employees, consultants, advisors and contractors to enter into agreements which prohibit the disclosure of confidential information and, where applicable, require disclosure and assignment to us of the ideas, developments, discoveries and inventions important to our business. These agreements may not provide adequate protection for our trade secrets, know-how or other proprietary information in the event of any unauthorized use or disclosure or the lawful development by others of such information. If any of our trade secrets, know-how or other proprietary information is disclosed, the value of our trade secrets, know-how and other proprietary rights would be significantly impaired and our business and competitive position would suffer. IF WE INFRINGE THE RIGHTS OF THIRD PARTIES WE COULD BE PREVENTED FROM SELLING PRODUCTS, FORCED TO PAY DAMAGES, AND DEFEND AGAINST LITIGATION. If our products, methods, processes and other technologies infringe the proprietary rights of other parties, we could incur substantial costs and we may have to: o obtain licenses, which may not be available on commercially reasonable terms, if at all; o redesign our products or processes to avoid infringement; o stop using the subject matter claimed in the patents held by others; o pay damages; or o defend litigation or administrative proceedings which may be costly whether we win or lose, and which could result in a substantial diversion of our valuable management resources. OUR ABILITY TO GENERATE PRODUCT REVENUES WILL BE DIMINISHED IF OUR DRUGS SELL FOR INADEQUATE PRICES OR PATIENTS ARE UNABLE TO OBTAIN ADEQUATE LEVELS OF REIMBURSEMENT. Our ability to commercialize our drugs, alone or with collaborators, will depend in part on the extent to which reimbursement will be available from: o government and health administration authorities; o private health maintenance organizations and health insurers; and o other healthcare payers. Significant uncertainty exists as to the reimbursement status of newly approved healthcare products. Healthcare payers, including Medicare, are challenging the prices charged for medical products and services. Government and other healthcare payers increasingly attempt to contain healthcare costs by limiting both coverage and the level of reimbursement for drugs. Even if our product candidates are approved by the FDA, insurance coverage may not be available, and reimbursement levels may be inadequate, to cover our drugs. If government and other healthcare payers do not provide adequate coverage and reimbursement levels for any of our products, once approved, market acceptance of our products could be reduced. 11

WE MAY NOT SUCCESSFULLY MANAGE OUR GROWTH. Our success will depend upon the expansion of our operations and the effective management of our growth, which will place a significant strain on our management and on our administrative, operational and financial resources. To manage this growth, we must expand our facilities, augment our operational, financial and management systems and hire and train additional qualified personnel. If we are unable to manage our growth effectively, our business would be harmed. WE MAY BE EXPOSED TO LIABILITY CLAIMS ASSOCIATED WITH THE USE OF HAZARDOUS MATERIALS AND CHEMICALS. Our research and development activities may involve the controlled use of hazardous materials and chemicals. Although we believe that our safety procedures for using, storing, handling and disposing of these materials comply with federal, state and local laws and regulations, we cannot completely eliminate the risk of accidental injury or contamination from these materials. In the event of such an accident, we could be held liable for any resulting damages and any liability could materially adversely effect our business, financial condition and results of operations. In addition, the federal, state and local laws and regulations governing the use, manufacture, storage, handling and disposal of hazardous or radioactive materials and waste products may require us to incur substantial compliance costs that could materially adversely effect our business, financial condition and results of operations. WE RELY ON KEY EXECUTIVE OFFICERS AND SCIENTIFIC AND MEDICAL ADVISORS, AND THEIR KNOWLEDGE OF OUR BUSINESS AND TECHNICAL EXPERTISE WOULD BE DIFFICULT TO REPLACE. We are highly dependent on our principal scientific, regulatory and medical advisors. We do not have "key person" life insurance policies for any of our officers. The loss of the technical knowledge and management and industry expertise of any of our key personnel could result in delays in product development, loss of customers and sales and diversion of management resources, which could adversely affect our operating results. IF WE ARE UNABLE TO HIRE ADDITIONAL QUALIFIED PERSONNEL, OUR ABILITY TO GROW OUR BUSINESS MAY BE HARMED. We will need to hire additional qualified personnel with expertise in pre-clinical testing, clinical research and testing, government regulation, formulation and manufacturing and sales and marketing. We compete for qualified individuals with numerous biopharmaceutical companies, universities and other research institutions. Competition for such individuals, particularly in the New York City area, is intense, and we cannot be certain that our search for such personnel will be successful. Attracting and retaining qualified personnel will be critical to our success. WE MAY INCUR SUBSTANTIAL LIABILITIES AND MAY BE REQUIRED TO LIMIT COMMERCIALIZATION OF OUR PRODUCTS IN RESPONSE TO PRODUCT LIABILITY LAWSUITS. The testing and marketing of medical products entail an inherent risk of product liability. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit commercialization of our products. Our inability to obtain sufficient product liability insurance at an acceptable cost to protect against potential product liability claims could prevent or inhibit the commercialization of pharmaceutical products we develop, alone or with corporate collaborators. We currently do not carry clinical trial insurance or product liability insurance. Although we intend to obtain clinical trial insurance prior to the commencement of any clinical trials, we, or any corporate collaborators, may not be able to obtain insurance at a reasonable cost, if at all. Even if our agreements with any future corporate collaborators entitle us to indemnification against losses, such indemnification may not be available or adequate should any claim arise. 12

WE ARE CONTROLLED BY CURRENT OFFICERS, DIRECTORS AND PRINCIPAL STOCKHOLDERS. Our directors, executive officers and principal stockholders beneficially own approximately __ percent of our outstanding common stock. Accordingly, these persons and their respective affiliates will have the ability to exert substantial influence over the election of our Board of Directors and the outcome of issues submitted to our stockholders. RISKS RELATED TO OUR SECURITIES TRADING OF OUR COMMON STOCK IS LIMITED. Trading of our common stock is conducted on the National Association of Securities Dealers' Over-the-Counter Bulletin Board, or "OTC Bulletin Board." This has adversely effected the liquidity of our securities, not only in terms of the number of securities that can be bought and sold at a given price, but also through delays in the timing of transactions and reduction in security analysts' and the media's coverage of us. This may result in lower prices for our common stock than might otherwise be obtained and could also result in a larger spread between the bid and asked prices for our common stock. BECAUSE IT IS A "PENNY STOCK," IT WILL BE MORE DIFFICULT FOR YOU TO SELL SHARES OF OUR COMMON STOCK. In addition, our common stock is a "penny stock." Broker-dealers who sell penny stocks must provide purchasers of these stocks with a standardized risk-disclosure document prepared by the SEC. This document provides information about penny stocks and the nature and level of risks involved in investing in the penny-stock market. A broker must also give a purchaser, orally or in writing, bid and offer quotations and information regarding broker and salesperson compensation, make a written determination that the penny stock is a suitable investment for the purchaser, and obtain the purchaser's written agreement to the purchase. The penny stock rules may make it difficult for you to sell your shares of our stock. Because of the rules, there is less trading in penny stocks. Also, many brokers choose not to participate in penny-stock transactions. Accordingly, you may not always be able to resell shares of our common stock publicly at times and prices that you feel are appropriate. A SIGNIFICANT NUMBER OF SHARES OF OUR COMMON STOCK ARE OR WILL BECOME AVAILABLE FOR SALE AND THEIR SALE COULD DEPRESS THE PRICE OF OUR COMMON STOCK. A substantial number of shares of our common stock are being offered by this prospectus. In addition, on February 21, 2004, up to 18,689,916 shares of our outstanding common stock that were issued in connection with our acquisition of Manhattan Research Development, Inc. will become available for sale pursuant to Rule 144 under the Securities Act. We may also issue additional shares in connection with our business and may grant additional stock options to our employees, officers, directors and consultants or warrants to third parties. Sales of a substantial number of shares of our common stock in the public market after this offering could adversely affect the market price for our common stock and make it more difficult for you to sell our shares at times and prices that you feel are appropriate. OUR STOCK PRICE IS, AND WE EXPECT IT TO REMAIN, VOLATILE, WHICH COULD LIMIT INVESTORS' ABILITY TO SELL STOCK AT A PROFIT. The volatile price of our stock makes it difficult for investors to predict the value of their investment, to sell shares at a profit at any given time, or to plan purchases and sales in advance. A variety of factors may affect the market price of our common stock. These include, but are not limited to: o publicity regarding actual or potential clinical results relating to products under development by our competitors or us; 13

o delay or failure in initiating, completing or analyzing pre-clinical or clinical trials or the unsatisfactory design or results of these trials; o achievement or rejection of regulatory approvals by our competitors or us; o announcements of technological innovations or new commercial products by our competitors or us; o developments concerning proprietary rights, including patents; o developments concerning our collaborations; o regulatory developments in the United States and foreign countries; o economic or other crises and other external factors; o period-to-period fluctuations in our revenues and other results of operations; o changes in financial estimates by securities analysts; and o sales of our common stock. We will not be able to control many of these factors, and we believe that period-to-period comparisons of our financial results will not necessarily be indicative of our future performance. In addition, the stock market in general, and the market for biotechnology companies in particular, has experienced extreme price and volume fluctuations that may have been unrelated or disproportionate to the operating performance of individual companies. These broad market and industry factors may seriously harm the market price of our common stock, regardless of our operating performance. WE HAVE NEVER PAID DIVIDENDS. We have never paid dividends on our capital stock and do not anticipate paying any dividends for the foreseeable future. NOTE REGARDING FORWARD-LOOKING STATEMENTS Certain statements contained in this prospectus that are forward-looking in nature are based on the current beliefs of our management as well as assumptions made by and information currently available to management, including statements related to the markets for our products, general trends in our operations or financial results, plans, expectations, estimates and beliefs. In addition, when used in this prospectus, the words "may," "could," "should," "anticipate," "believe," "estimate," "expect," "intend," "plan," "predict" and similar expressions and their variants, as they relate to us or our management, may identify forward-looking statements. These statements reflect our judgment as of the date of this prospectus with respect to future events, the outcome of which is subject to risks, which may have a significant impact on our business, operating results or financial condition. You are cautioned that these forward-looking statements are inherently uncertain. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results or outcomes may vary materially from those described herein. We undertake no obligation to update forward-looking statements. The risks identified under the heading "Risk Factors" in this prospectus, among others, may impact forward-looking statements contained in this prospectus. 14

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS You should read the following discussion of our results of operations and financial condition in conjunction with our Annual Report on Form 10-KSB for the year ended December 31, 2002, our Quarterly Report on Form 10-Q for the quarter ended September 30, 2003, and our Current Report on Form 8-K/A filed with the SEC on May 9, 2003, which contains the financial statements of Manhattan Research Development, Inc. This discussion includes "forward-looking" statements that reflect our current views with respect to future events and financial performance. We use words such as we "expect," "anticipate," "believe," and "intend" and similar expressions to identify forward-looking statements. Investors should be aware that actual results may differ materially from our expressed expectations because of risks and uncertainties inherent in future events, particularly those risks identified in the "Risk Factors" section of this prospectus, and should not unduly rely on these forward looking statements. All share and per share information in this discussion has been adjusted for the 1-for-5 combination of our common stock effected on September 25, 2003. RESULTS OF OPERATIONS NINE-MONTH PERIOD ENDED SEPTEMBER 30, 2003 VS. 2002 During the nine months ended September 30, 2003 and 2002, we had no revenue. For the nine months ended September 30, 2003, research and development expense was $734,351 as compared to $624,971 for the nine months ended September 30, 2002. The increase of $109,380 is due primarily to an acceleration of pre-clinical development of our Oleoyl-estrone drug and to the pre-clinical development of our Propofol Lingual Spray, which was licensed in 2003 resulting in an increase of associated expenses of approximately $149,000. This increase is partially offset by the fact that we paid license fees of $175,000 to Oleoyl-estrone Developments, Inc (OED) in 2002 but paid only $125,000 of license fees to NovaDel Pharma, Inc. in 2003. We also had an increase in patent related fees over the prior year of approximately $10,000. For the nine months ended September 30, 2003, general and administrative expense was $1,255,446 as compared to $198,485 for the nine months ended September 30, 2002. The increase of $1,056,961 is due primarily to expenses associated with hiring full time employees and consultants of approximately $296,000 and $199,000, respectively. In addition, we had increases in legal and accounting fees of approximately $193,000 associated with becoming subject to the reporting obligations under the Exchange Act following completion of the Atlantic Technology Ventures, Inc. - Manhattan Research Development, Inc. merger in February 2003. Rent, directors fees, insurance and other expenses increased by approximately $36,000, $34,000, $108,000 and $46,000, respectively. Finally, in 2003, we had amortization of intangible assets of approximately $145,000. Net loss for the nine months ended September 30, 2003, was $4,451,290 as compared to $835,569 for the nine months ended September 30, 2002. This increase in net loss is attributable primarily to a loss on the disposition of intangible assets as a result of our sale of our remaining rights to CT-3 to Indevus Pharmaceuticals, Inc. of $1,213,878 as well as an impairment of intangible assets of $1,248,230 as a result of a decision by Bausch & Lomb not to pursue the Avantix cataract removal technology. In addition, we had an increase in general and administrative expenses of $1,056,961 primarily as a result of our hiring employees and management and becoming a public company and an increase in research and development expenses of $109,380. YEAR ENDED DECEMBER 31, 2002 VS. DECEMBER 31, 2001 During the year ended December 31, 2002 and interim period of 2001, we had no revenue. 15

For the year ended December 31, 2002, research and development expense was $700,798 as compared to $55,236 for the interim period of 2001. The increase of $645,562 is due to the fact that substantially all of the pre-clinical work was done in 2002. In addition, we paid license fees of $175,000 in connection with our licensing exclusive world wide rights to our product candidate Oleoyl-estrone to Oleoyl-estrone Developments, Inc (OED) in 2002. For the year ended December 31, 2002, general and administrative expense was $317,384 as compared to $1,560 for the interim period of 2001. This increase of $315,824 was primarily due to various activities that occurred in 2002 including the following: recruiting fees in connection with recruiting management, office service fees, accounting fees for the audits, legal fees for the contemplated merger with Atlantic Technology Ventures, Inc, patent review and other due diligence expenses. Interest expense was $19,138 for the year ended December 30, 2002 compared to zero in 2001. This increase was caused by bank loans entered into in 2002. The proceeds of the bank loans were used for general corporate purposes. Net loss for the year ended December 31, 2002 was $1,037,320 as compared to $56,796 for the interim period of 2001. This increase in net loss is primarily due to an increase in research and development expenses of $645,562. In addition, we had an increase in general and administrative expenses of $315,824 and an increase in interest expense of $19,138. LIQUIDITY AND CAPITAL RESOURCES From inception to September 30, 2003, we incurred an accumulated deficit of $5,545,406, and we expect to continue to incur additional losses through the year ending September 30, 2004 and for the foreseeable future. This loss has been incurred through a combination of research and development activities related to the various technologies under our control and expenses supporting those activities. During 2002, our subsidiary, Manhattan Research Development, Inc. (Manhattan Research) commenced a private placement and sold 239,450 shares of common stock at $8 ($0.63 post merger) per share and received proceeds of $1,704,318, net of expenses of $211,181. These shares converted into 3,043,332 shares of our common stock when we completed a reverse acquisition of Manhattan Research as described below. In addition, each investor received warrants equal to 10% of the number of shares of common stock purchased and, accordingly, Manhattan Research issued warrants to purchase 23,945 shares of common stock in 2002 in connection with the private placement. Upon the merger, these converted into warrants to purchase 304,333 shares of our common stock. Each warrant had an exercise price of $8 per share, which post merger converted to $0.63. These warrants expire in 2007. During January and February 2003, Manhattan Research sold an additional 104,000 shares of common stock at $8 ($0.63, post merger) per share and warrants to purchase 10,400 shares of common stock exercisable at $8 ($0.63 post merger) through the private placement and received net proceeds of $743,691. These shares converted into 1,321,806 shares of our common stock when we completed our reverse acquisition of Manhattan Research. The warrants to purchase 10,400 shares of common stock converted into warrants to purchase 132,181 common shares of the combined Company. In addition, in connection with the private placement, Manhattan Research issued to Joseph Stevens & Co., Inc., a NASD-member broker-dealer, warrants to purchase 130,511 shares of its common stock that are exercisable at $8 ($0.63 post merger) per share and expire in 2008. Upon the merger, these warrants converted into warrants to purchase 1,658,753 shares of common stock of the combined Company. We have financed our operations since inception primarily through equity and debt financing and our licensing of CT-3 to Indevus. During the nine months ended September 30, 2003, we had a net decrease in cash and cash equivalents of $1,619,009. This decrease primarily resulted from net cash used in operating activities for the nine months ended September 30, 2003 of $1,736,285. Total cash resources as of September 30, 2003 were $102,114 compared to $1,721,123 at December 31, 2002. 16

Our available working capital and capital requirements will depend upon numerous factors, including progress of our research and development programs, our progress in and the cost of ongoing and planned pre-clinical and clinical testing, the timing and cost of obtaining regulatory approvals, the cost of filing, prosecuting, defending, and enforcing patent claims and other intellectual property rights, competing technological and market developments, changes in our existing collaborative and licensing relationships, the resources that we devote to developing manufacturing and commercializing capabilities, technological advances, the status of our competitors, our ability to establish collaborative arrangements with other organizations and our need to purchase additional capital equipment. Our continued operations will depend on whether we are able to raise additional funds through various potential sources, such as equity and debt financing, other collaborative agreements, strategic alliances, and our ability to realize the full potential of our technology in development. Such additional funds may not become available on acceptable terms and there can be no assurance that any additional funding that the combined Company does obtain will be sufficient to meet the combined Company's needs in the long term. Through September 30, 2003, a significant portion of our financing has been through private placements of common stock and warrants and debt financing. Unless our operations generate significant revenues, we will continue to fund operations from cash on hand and through the similar sources of capital previously described. We can give no assurances that any additional capital that we are able to obtain will be sufficient to meet our needs. Management believes that we will continue to incur net losses through at least September 30, 2004. Based on our current resources, we will need additional equity or debt financing or we will need to generate revenues through licensing our products or entering into strategic alliances to be able to sustain our operations until we can achieve profitability, if ever. On November 7, 2003, we completed a private placement of 1,000,000 shares of our newly-designated Series A Convertible Preferred Stock at a price of $10 per share, resulting in gross proceeds to us of $10,000,000. Each share of Series A Convertible Preferred Stock is convertible at the holder's election into shares of our common stock at a conversion price of $1.10 per share. The conversion price of the Series A Convertible Preferred Stock was less than the market value of our common stock on November 7, 2003. Accordingly, we will record a charge for the beneficial conversion feature associated with the convertible preferred stock. Such charge is anticipated to approximate $418,000. On February 21, 2003, we completed a reverse acquisition of privately held Manhattan Research Development, Inc., (formerly Manhattan Pharmaceuticals, Inc.) (Manhattan Research) a Delaware corporation. The merger was effected pursuant to an Agreement and Plan of Merger dated December 17, 2002 (the "Merger Agreement") by and among the Company, Manhattan Research and Manhattan Pharmaceuticals Acquisition Corp, the Company's wholly owned subsidiary ("MPAC"). In accordance with the terms of the Merger Agreement, MPAC merged with and into Manhattan Research, with Manhattan Research remaining as the surviving corporation and our wholly owned subsidiary. Pursuant to the Merger Agreement, upon the effective time of the merger, the outstanding shares of common stock of Manhattan Research automatically converted into an aggregate of 18,689,917 shares of our common stock, which represented 80 percent of our outstanding voting stock after giving effect to the merger. In addition, immediately prior to the merger Manhattan Research had outstanding options and warrants to purchase an aggregate of 172,856 shares of its common stock, which, in accordance with the terms of the merger, automatically converted into options and warrants to purchase an aggregate of 2,196,944 shares of our common stock. Since the stockholders of Manhattan Research received the majority of our voting shares, the merger was being accounted for as a reverse acquisition whereby Manhattan Research was the accounting acquirer (legal acquiree) and we were the accounting acquiree (legal acquirer). Based on the five-day average price of our common stock of $0.50 per share, the purchase price approximated $2,336,000 plus approximately $33,000 of acquisition costs, which represents 20 percent of the market value of the combined Company's post-merger total outstanding shares of 23,362,396. In connection with the merger, we changed our name from "Atlantic Technology Ventures, Inc." to "Manhattan Pharmaceuticals, Inc." At the time of the merger, Manhattan Research recognized patents and licenses for substantially all of the purchase price. As a result of acquiring Manhattan Research, the Company received new technologies. A formal purchase price allocation was completed in the third quarter of 2003. 17

In April 2003, we entered into a license and development agreement with NovaDel Pharma, Inc. ("NovaDel"), under which we received certain worldwide, exclusive rights to develop and commercialize products related to NovaDel's proprietary lingual spray technology for delivering propofol for pre-procedural sedation. Under the terms of this agreement, we agreed to use our commercially reasonable efforts to develop and commercialize the licensed products, to obtain necessary regulatory approvals and to thereafter exploit the licensed products. The agreement also provides that NovaDel will undertake to perform, at our expense, a substantial portion of the development activities, including without limitation, preparation and filing of various applications with applicable regulatory authorities. In consideration of the license, upon the occurrence of certain development and regulatory events, we are obligated to make payments to NovaDel upon the occurrence of certain milestones, including filing a New Drug Application or "NDA" that is accepted for review by the FDA for a licensed product, filing a European Marketing Application for a licensed product, having a filed NDA approved by the FDA, having a European Marketing Application accepted for review within the European Union, receiving commercial approval in Japan, Canada, Australia and South Africa, and upon receiving regulatory approval in certain other countries. The aggregate amount of the milestone payments is significant in light of our currently available resources. In addition, we are obligated to pay to NovaDel an annual royalty based on a fixed rate of net sales of licensed products, or if greater, the annual royalty is based on our net profits from the sale of licensed products at a rate that is twice the net sales rate. In the event we sublicense the licensed product to a third party, we are obligated to pay royalties based on a fixed rate of fees or royalties received from the sublicensee until such time as we recover our out-of-pocket costs, and thereafter the royalty rate doubles. Because of the continuing development efforts required of NovaDel under the agreement, the royalty rates are substantially higher than customary for the industry. We are also required to pay an up-front fee in installments contingent on whether we receive certain amounts through financings, revenues or otherwise. To date, we have paid and expensed $125,000 of such up-front fee. NovaDel may terminate the agreement (i) upon 10 days' notice if we fail to make any required milestone or royalty payments, (ii) if we fail to obtain financing of at least $5,000,000 by March 31, 2004 (see above), or (iii) if we become bankrupt or if a petition in bankruptcy or insolvency is filed and not dismissed within 60 days or if we become subject to a receiver or trustee for the benefit of creditors. Each party may terminate the agreement upon 30 days' written notice and an opportunity to cure in the event the other party committed a material breach or default. We may also terminate the agreement for any reason upon 90 days' notice to NovaDel. Our common stock is quoted on the OTC Bulletin Board under the symbol "MHTT.OB". This has an adverse effect on the liquidity of our common stock, not only in terms of the number of shares that can be bought and sold at a given price, but also through delays in the timing of transactions and reduction in security analysts' and the media's coverage of us. This may result in lower prices for shares of our common stock than might otherwise be obtained and could also result in a larger spread between the bid and asked prices for shares of our common stock. 18

CRITICAL ACCOUNTING POLICIES In December 2001, the SEC requested that all registrants discuss their most "critical accounting policies" in management's discussion and analysis of financial condition and results of operations. The SEC indicated that a "critical accounting policy" is one which is both important to the portrayal of the company's financial condition and results and requires management's most difficult, subjective or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain. Our significant accounting policies are described in Note 1 to our consolidated financial statements included in our previously filed Annual Report on Form 10-KSB for the year ended December 31, 2002; however, we believe that none of them is considered to be critical. RECENTLY ISSUED ACCOUNTING STANDARDS In June 2002, the Financial Accounting Standards Board ("FASB") issued Statement of Financial Accounting Standards ("SFAS") No. 146, "Accounting for Costs Associated with Exit or Disposal Activities." SFAS No.146 addresses financial accounting and reporting for costs associated with exit or disposal activities and nullifies Emerging Issues Task Force ("EITF") issue No. 94-3, "Liability Recognition for Certain Employee Termination Benefits and Other Costs to Exit and Activity." SFAS No. 146 requires that liability for a cost associated with an exit or disposal activity be recognized when the liability is incurred. This statement also established that fair value is the objective for initial measurement of the liability. The provisions of SFAS No. 146 are effective for exit or disposal activities that initiated after December 31, 2002. The adoption of SFAS No. 146 did not have a material impact on our consolidated financial statements. In December 2002, FASB issued SFAS No. 148, "Accounting for Stock-Based Compensation- Transition and Disclosure an Amendment of SFAS No. 123." SFAS No. 148 amends SFAS No. 123 to provide alternative methods of transition for a voluntary change to the fair value based method of accounting for stock-based employee compensation. In addition, SFAS No. 148 amends the disclosure requirements of SFAS No. 123 to require prominent disclosures in both annual and interim financial statements about the method of accounting for stock- based employee compensation and the effect of the method used on reported results. The Company adopted the disclosure provisions of SFAS No. 148, effective January 1, 2003. 19

BUSINESS OVERVIEW We are engaged in the business of developing and commercializing early-stage technologies, particularly biomedical and pharmaceutical technologies. We aim to acquire proprietary rights to these technologies, by license or acquiring an ownership interest, fund their research and development and eventually bring the technologies to market. We do not have any drugs or other products available for sale, but we are currently researching and developing two biomedical technologies: o Oleoyl-estrone, an orally administered hormone attached to a fatty-acid that has been shown to cause significant weight loss in preclinical animal studies regardless of dietary modifications; and o Lingual spray propofol, a proprietary lingual spray technology to deliver propofol for pre-procedural sedation prior to diagnostic, therapeutic or endoscopic procedures. Although we are primarily focused on developing these technologies, we continue to seek to acquire proprietary rights to other biomedical and pharmaceutical technologies, by licensing or acquiring an ownership interest, funding their research and development and bringing the technologies to market. We were incorporated in Delaware on May 18, 1993 under the name "Atlantic Pharmaceuticals, Inc." and in March 2000, we changed our name to "Atlantic Technology Ventures, Inc." On February 21, 2003, we completed a "reverse" acquisition of privately-held Manhattan Research Development, Inc. (formerly known as Manhattan Pharmaceuticals, Inc.), a Delaware corporation. To effect this transaction, we caused Manhattan Pharmaceuticals Acquisition Corp., our wholly-owned subsidiary, to merge with and into Manhattan Research Development, with Manhattan Research Development surviving as our wholly owned subsidiary. In accordance with the terms of the merger, the outstanding shares of common stock of Manhattan Research Development automatically converted into the right to receive an aggregate of approximately 80 percent of our outstanding common stock (after giving effect to the transaction). For accounting purposes, however, Manhattan Research Development was treated as the acquiring company. In connection with the merger, we also changed our name to "Manhattan Pharmaceuticals, Inc." OLEOYL-ESTRONE We acquired rights to oleoyl-estrone, a hormone modified by an attachment to a fatty acid, as a result of our merger with Manhattan Research Development in February 2003. Oleoyl-estrone is an orally administered small molecule that has been shown to cause significant weight loss in preclinical animal studies regardless of dietary modifications. We believe that oleoyl-estrone causes weight loss in two ways. First, the scientific community believes that weight loss is regulated by a part of the hypothalamus, located in the brain, called the ponderostat. It is believed that the ponderostat regulates the body's weight in a manner similar to the way in which a thermostat regulates a room's temperature. Preclinical studies suggest that oleoyl-estrone resets the ponderostat, telling the body that a lower weight is normal. We believe that this signal then decreases appetite, which leads to weight loss that may be maintained even after oleoyl-estrone treatment is discontinued. Second, fat cells that have been treated with oleoyl-estrone appear to shrink in size, indicating a local effect of oleoyl-estrone acting directly on the cells. The apparent dual effect of oleoyl-estrone leads us to believe that the drug has the potential to cause weight loss in a variety of obese and overweight patients. Oleoyl-estrone was initially developed by researchers at the University of Barcelona ("UB") in Spain. Throughout a decade of research, scientists of the Nitrogen-Obesity Research Group at UB noted that hormones that effect metabolism play a significant role in body weight regulation. At the same time, the obesity research community suggested that weight is regulated by the ponderostat, a central mechanism in the hypothalamus of the brain believed to set the point of ideal weight. Researchers at UB believe that a hormone controls the ponderostat, raising or lowering body weight by changing the central set point for the entire body. 20

After examining the available work related to estrogens and changes in body weight and body fat percentage (such as during pregnancy), researchers at UB noted that the estrogen-like hormone, estrone, was elevated in the blood of both obese men and women. Initially thought to be a simple estrogen, UB researchers noticed that although estrone levels were elevated, very few obese men manifest the effects of elevated estrogen levels. Further testing revealed that oleoyl-estrone was the main form of estrone that existed in obese patients. The researchers suggested that when cells become filled with fat they produce oleoyl-estrone, signaling the brain to lose weight. They further suggested that fat cells in obese people do not produce sufficiently high levels of oleoyl-estrone to signal the ponderostat to suppress appetite and cause weight loss. Based on this concept, investigators at UB believed that they could induce weight loss by increasing levels of oleoyl-estrone in obese individuals. When oleoyl-estrone was given to rats, the rats lost weight in a dose-dependent manner, supporting out the idea that oleoyl-estrone is a primary weight loss signal produced by fat cells. At the doses employed, no side effects were observed in the rats and, in female rats, uterine size remained unchanged, indicating that oleoyl-estrone did not act as an estrogen. During the first quarter of 2003, we contracted and successfully completed reference batch manufacture of oleoyl-estrone. This enabled us to further refine the manufacturing and chemical analysis process, and to allocate a portion of this purified drug substance for formulation studies. LINGUAL SPRAY PROPOFOL On April 4, 2003, we entered into a License and Development Agreement (the "Propofol License") with NovaDel Pharma Inc. ("NovaDel") for the worldwide, exclusive rights to NovaDel's proprietary lingual spray technology to deliver propofol for preprocedural sedation prior to diagnostic, therapeutic or endoscopic procedures. Propofol is currently delivered in an oily emulsion for intravenous infusion for induction and maintenance of general anesthesia or "monitored anesthesia care" in operating rooms, or deep sedation in intensive care units. Sales of intravenous propofol in 1998 were reported to be in excess of $518 million annually. Propofol has previously not been available for dosing via a convenient route of administration for office-based and other ambulatory uses. Accordingly, we have filed a patent application for this new method of use. Other patents are being prepared related to Manhattan's non-oily, novel formulation. In June 2003, the Company and NovaDel jointly announced commencement of the Development Program. We believe that delivering propofol via this proprietary delivery system provides many advantages over currently formulated sedatives. In addition to the convenience and ease of administration, the lingual spray route will eliminate delayed onset and poor coordination of timing associated with oral sedative administration, and allow for rapid clinical responses typical of intravenous delivery (i.e. < 5 minutes). Lingual spray propofol is intended to allow patients to tolerate unpleasant procedures, by relieving anxiety and producing a pleasant, short-term amnesia. Particularly in children and adults unable to cooperate, mild sedation expedites the conduct of numerous ambulatory procedures that are not particularly painful, but which require the patient to remain still for the best technical result. Novadel's delivery systems (both patented and patent-pending) are lingual sprays, enabling drug absorption through the oral mucosa and more rapid absorption into the bloodstream than presently available oral delivery systems. NovaDel refers to its delivery system as Immediate-Immediate Release (I2RTM) because its delivery system is designed to provide therapeutic benefits within minutes of administration. We are working with NovaDel to develop, manufacture and commercialize the licensed product. Initial formulation work has commenced and, while there can be no assurance, we anticipate filing an Investigational New Drug Application (IND) by early 2004 and commencing human clinical trials shortly thereafter. 21

MARKET AND COMPETITION According to estimates, the market for prescription anti-obesity drugs is approximately $10 billion, or equal to that of diabetes. It is estimated that 61 percent of Americans are overweight and that 26 percent are obese. According to the National Institute of Health's estimate, direct costs for the treatment of obesity in 1988 were in excess of $45 billion and accounted for nearly 8 percent of the total national cost of health care in the United States. By 1999, direct costs for the treatment of obesity had reached $102.2 billion dollars. Meridia(R) and Xenical(R), two currently approved anti-obesity medications, together accounted for approximately $800 million in sales in 2001. We believe that the disease currently lacks a treatment that is safe and effective for most patient groups, and that oleoyl-estrone has the potential to meet the needs of this market. To date, Midazolam (now a generic), which is delivered both intravenously and orally, has dominated the preprocedural sedation market, posting sales of $536 million in 1999. However, serious adverse events are reported in midazolam's package insert, including respiratory depression, airway obstruction, oxygen desaturation, apnea and even respiratory arrest. In contrast, at the doses being developed by us, we believe that Propofol Lingual Spray may offer a safer, noninvasively administered alternative to midazolam. Propofol's rapid onset profile will allow clinicians to more accurately time its peak effects during procedures, as well as to determine the precise concentration needed for desired levels of sedation. Competition in the pharmaceutical industry, and the anti-obesity drug market in particular, is intensely competitive. In addition to Abbott Laboratories, Inc. and Roche Holdings AG, the makers of Meridia(R) and Xenical,(R) respectively, some of the largest drug companies in the world have anti-obesity drugs currently in development, including GlaxoSmithKline PLC, Johnson & Johnson, Inc., Bristol-Myers Squibb Company, Regeneron Pharmaceutical, Inc., Phytopharm, PLC, Amgen, Inc. These companies are all substantially larger and more established than we are and have significantly greater financial and other resources than we do. INTELLECTUAL PROPERTY Our goal is to obtain, maintain and enforce patent protection for our products, formulations, processes, methods and other proprietary technologies, preserve our trade secrets, and operate without infringing on the proprietary rights of other parties, both in the United States and in other countries. Our policy is to actively seek to obtain, where appropriate, the broadest intellectual property protection possible for our product candidates, proprietary information and proprietary technology through a combination of contractual arrangements and patents, both in the U.S. and elsewhere in the world. We also depend upon the skills, knowledge and experience of our scientific and technical personnel, as well as that of our advisors, consultants and other contractors, none of which is patentable. To help protect our proprietary know-how which is not patentable, and for inventions for which patents may be difficult to enforce, we rely on trade secret protection and confidentiality agreements to protect our interests. To this end, we require all employees, consultants, advisors and other contractors to enter into confidentiality agreements which prohibit the disclosure of confidential information and, where applicable, require disclosure and assignment to us of the ideas, developments, discoveries and inventions important to our business. 22

Oleoyl-estrone We currently have worldwide, exclusive license rights to the U.S. and foreign patents and patent applications set forth below pursuant to license agreements with Oleoyl-estrone Developments, SL, a Spanish corporation, regarding the use of oleoyl-estrone for the treatment of human disease: 1. US Patent No. 5,798,348 entitled "Fatty-acid monesters of estrogens for the treatment of obesity and/or overweight." M. Alemany, Inventor. Application filed, October 30, 1996. Patent issued August 25, 1998. 2. European Patent No. 771.817 entitled "Fatty-acid monoesters of estrogens for the treatment of obesity and/or overweight." M. Alemany, Inventor. Application filed, October 28, 1996. Patent issued May 7, 1997. 3. Patent Cooperation Treaty and Spanish Patent Application No. ES 200100785 entitled "Fatty-acid monoesters of estrogens acting as anti-diabetic and hypolipidemia agents." M. Alemany Lamana, Francisco Javier Remesar Betiloch, and Jose Antonio Fernandez Lopez, Inventors. Application filed March 28, 2001. The U.S. and European patents have numerous, detailed, and specific claims for both the composition of oleoyl-estrone, and its method of use for weight loss. Our rights to these patents are subject to the terms of a February 2002 license agreement between us and Oleoyl-estrone Developments. The license agreement provides us with an exclusive, worldwide right to the intellectual property covered by the license agreement, including the right to grant sublicenses. Although we are not obligated to pay royalties to Oleoyl-estrone Developments, the license agreement requires us to make certain performance-based milestone payments. Propofol Pursuant to the NovaDel license agreement, we have an exclusive, worldwide license to NovaDel's proprietary lingual spray technology to deliver propofol for preprocedural sedation prior to diagnostic, therapeutic or endoscopic procedures. Our rights under the NovaDel License include license rights to the following patents held by NovaDel: 1. U.S. Patent No. 5,955,098, entitled "Buccal Non Polar Spray or Capsule." H.A. Dugger, III, Inventor. Application filed April 12, 1996. Patent issued September 21, 1999. 2. U.S. Patent No. 6,110,486, entitled "Buccal Polar Spray or Capsule." H.A. Dugger, III, Inventor. Application filed November 25, 1998. Patent issued August 29, 2000. 3. European Patent No. 0904055 entitled "Buccal, Non-Polar Spray or Capsule." H.A. Dugger, III, Inventor. Application filed, February 21, 1997. Patent issued April 16, 2003. MANUFACTURING We do not have any manufacturing capabilities. We have been in contact with several contract "Good Manufacturing Process" (GMP) manufacturers for the supply of both oleoyl-estrone and lingual spray propofol that will be necessary to conduct Phase I human clinical trials. A method has been identified for synthesizing oleoyl-estrone, and can be done through simple reactions that produce the substance at above 99 percent purity. We believe that the production of oleoyl-estrone will involve one contract manufacturer for clinical trials. Bids are being received from multiple providers, so that provider redundancy can be maintained during product launch. 23

GOVERNMENT REGULATION Regulation by government authorities in the United States and foreign countries is a significant factor in the research, development, manufacture, and marketing of oleoyl-estrone and lingual spray propofol. Oleoyl-estrone and any future product candidate will require regulatory approval before they can be commercialized. In particular, human therapeutic products are subject to rigorous preclinical and clinical trials and other premarket approval requirements by the FDA and foreign authorities. Many aspects of the structure and substance of the FDA and foreign pharmaceutical regulatory practices have been reformed during recent years, and continued reform is under consideration in a number of forums. The ultimate outcome and impact of such reforms and potential reforms cannot be reasonably predicted. Clinical trials are conducted in accordance with certain standards under protocols that detail the objectives of the study, the parameters to be used to monitor safety, and the efficacy criteria to be evaluated. Each protocol must be submitted to the FDA. The phases of clinical studies may overlap. The designation of a clinical trial as being of a particular phase is not necessarily indicative that such a trial will be sufficient to satisfy the parameters of a particular phase, and a clinical trial may contain elements of more than one phase notwithstanding the designation of the trial as being of a particular phase. We cannot assure you that the results of preclinical studies or early stage clinical trials will predict long-term safety or efficacy of our compounds when they are tested or used more broadly in humans. Various federal and state statutes and regulations also govern or influence the research, manufacture, safety, labeling, storage, record keeping, marketing, transport, or other aspects of such products. The lengthy process of seeking these approvals and the compliance with applicable statutes and regulations require the expenditure of substantial resources. Any failure by us or our any future collaborators or licensees to obtain, or any delay in obtaining, regulatory approvals could adversely affect the marketing of our product candidates and any other products and our ability to receive product or royalty revenue. EMPLOYEES We currently have 4 employees: a president & chief executive officer, a chief financial officer & chief operating officer, a manager of clinical development and an administrative assistant. PROPERTIES Since February 2003, our executive offices have been located at 787 Seventh Avenue, 48th Floor, New York, New York 10019. We currently occupy this space pursuant to an oral understanding under which we pay rent of approximately $6,400 per month. We are currently negotiating a longer-term written lease with our landlord and we anticipate our monthly rental payments to remain at that amount. We believe that our existing facilities are adequate to meet our current requirements. We do not own any real property. LEGAL MATTERS We are not a party to any material litigation and are not aware of any threatened litigation that would have a material adverse effect on our business. 24

MANAGEMENT DIRECTORS AND EXECUTIVE OFFICERS Name Age Position - ---- --- -------- Leonard Firestone, M.D............................... 51 President and Chief Executive Officer and Director Nicholas J. Rossettos, C.P.A......................... 38 Chief Financial Officer, Chief Operating Officer and Secretary Joshua Kazam......................................... 26 Director Michael Weiser, M.D., Ph.D........................... 40 Director Joan Pons............................................ 53 Director David M. Tanen....................................... 32 Director LEONARD FIRESTONE, M.D., has been President, Chief Executive Officer and a director of our company since completion of the merger transaction with Manhattan Research Development in February 2003. Prior to the merger, Dr. Firestone served as president and chief executive officer of Manhattan Research Development since January 2003. From 2001 until he joined Manhattan Research Development, Dr. Firestone served as chief executive officer, director, and chief medical officer of Innovative Drug Delivery Systems, Inc., a privately-held, specialty pharmaceutical development company focused on pain relievers. Dr. Firestone previously was chief executive officer and chairman of University Anesthesiology and Critical Care Medicine Foundation, Inc., one of America's largest clinical practice management companies, from 1996 to 2001, as well as Chair of that Foundation's Pension Trustees from 1996 to 2001. He was awarded the endowed, University Professorship in his specialty at the University of Pittsburgh, and also held faculty appointments at Harvard Medical School (Massachusetts General Hospital), and Yale School of Medicine. Dr. Firestone received an M.D. from Yale University, where he also was a resident and clinical Fellow, and remains certified by his specialty Board. Dr. Firestone is a trained pharmacologist as well as clinician, having served as a National Institutes of Health (NIH) Postdoctoral Fellow at Harvard University, and has held prestigious NIH Principal Investigatorships consecutively from 1985 - 2001 and been a member of numerous NIH review committees and panels. NICHOLAS J. ROSSETTOS has been our Chief Financial Officer and Treasurer since April 2000 and our Chief Operating Officer since February 2003. From February 1999 until joining our company, Mr. Rossettos was Manager of Finance for Centerwatch, a pharmaceutical trade publisher headquartered in Boston, Massachusetts, that is a wholly owned subsidiary of Thomson Corporation of Toronto, Canada. Prior to that, from 1994, he was Director of Finance and Administration for EnviroBusiness, Inc., an environmental and technical management-consulting firm headquartered in Cambridge, Massachusetts. Mr. Rossettos is a certified public accountant and holds an M.S. in Accounting and M.B.A. from Northeastern University. JOSHUA KAZAM has been a director of our company since the completion of our merger transaction with Manhattan Research Development, Inc. in February 2003. He served as a director of Manhattan Research Development since December 2001. Since 2001, Mr. Kazam has been the Director of Investment for the Orion Biomedical Fund, a New York based private equity fund focused on biotechnology investments. Mr. Kazam attended the Wharton School of the University of Pennsylvania where he focused in finance and entrepreneurial management. 25

MICHAEL WEISER, M.D., PH.D., has been a director of our company since the completion of our merger transaction with Manhattan Research Development, Inc. in February 2003. He served as a director of Manhattan Research Development since December 2001 and as its Chief Medical Officer from its inception until August 2001. Dr. Weiser is currently also the Director of Research of Paramount Capital Asset Management. Dr. Weiser is also a member of Orion Biomedical GP, LLC, and serves on the board of directors of several privately held companies. Dr. Weiser received an M.D. from New York University School of Medicine and a Ph.D. in Molecular Neurobiology from Cornell University Medical College. Dr. Weiser completed a Postdoctoral Fellowship in the Department of Physiology and Neuroscience at New York University School of Medicine and performed his post-graduate medical training in the Department of Obstetrics and Gynecology and Primary Care at New York University Medical Center. Dr. Weiser will dedicate only a portion of his time to our business. JOAN PONS has been a director of our company since February 21, 2003, the date of our merger with Manhattan Research Development. Prior to the merger, he served as a director of Manhattan Research Development from 2002. Since 2002, Mr. Pons has served chief executive officer of Oleoyl-Estrone Development S.L., a spin-off of the University of Barcelona. Pursuant to a January 2002 license agreement, we hold an exclusive worldwide license to several patents and patent applications relating to oleoyl-estrone, which are owned by Oleoyl-Estrone Development. From 1999 until joining Oleoyl-Estrone Development, Mr. Pons has served as Director of Franchising of Pans & Company, a fast-food company. From 1972 until 1999, Mr. Pons was employed in various finance and sales capacities by Gallina Blanca Purina S.A., a joint venture between St. Louis, Missouri based Ralston Purina Co. and Spanish based Agrolimen S.A., most recently serving as its National Sales & Marketing Director. DAVID M. TANEN has been a director of our company since January 2002. Since 1996, Mr. Tanen has served as an associate director of Paramount Capital, where he has been involved in the founding of a number of biotechnology start-up companies. Since February 2003, Mr. Tanen has also served as a director of Chiral Quest, Inc. (OTC: CQST) and he also serves as an officer or director of several other privately held development-stage biotechnology companies. Mr. Tanen holds a law degree from Fordham University School of Law. There are no family relationships among our executive officers or directors. 26

COMPENSATION OF EXECUTIVE OFFICERS The following table sets forth, for the last three fiscal years, the compensation earned for services rendered in all capacities by our chief executive officer and the other highest-paid executive officers serving as such at the end of 2003 whose compensation for that fiscal year was in excess of $100,000. The individuals named in the table will be hereinafter referred to as the "Named Officers." No other executive officer of Manhattan received compensation in excess of $100,000 during fiscal year 2003. Summary Compensation Table - ------------------------------------------- --------------------------------------------- ---------------- ------------------ LONG-TERM COMPENSATION ALL OTHER ANNUAL COMPENSATION AWARDS COMPENSATION ($) - ------------------------------------------- --------------------------------------------- ---------------- ------------------ SECURITIES OTHER ANNUAL UNDERLYING NAME AND PRINCIPAL POSITION YEAR SALARY($) BONUS($) COMPENSATION ($) OPTIONS/SARS(#) - ---------------------------------- -------- ----------- -------------- ------------------ ---------------- ------------------ Leonard Firestone (1) 2003 250,000 200,000 0 584,060 0 Chief Executive Officer and 2002 -- -- -- -- -- President 2001 -- -- -- -- -- - ---------------------------------- -------- ----------- -------------- ------------------ ---------------- ------------------ Nicholas J. Rossettos 2003 142,788 25,000 22,397(2) 292,030 Chief Operating Officer, 2002 107,645 25,000 10,000(3) 55,000 0 Chief Financial Officer, 2001 125,000 25,000 10,000(3) 10,000 0 Treasurer & Secretary - ---------------------------------- -------- ----------- -------------- ------------------ ---------------- ------------------ - -------------- (1) Dr. Firestone became chief executive officer of Manhattan Research Development, Inc. in January 2003 and, following the merger with Atlantic Technology Ventures, Inc. on February 21, 2003, he was appointed chief executive officer of our company. The above table reflects Dr. Firestone's combined compensation received from Manhattan Research Development and our company during fiscal 2003. (2) Represents salary deferred from the prior fiscal year and prior to February 24, 2003. (3) Represents matching contributions by us pursuant to our company's SAR-SEP retirement plan. 27

OPTIONS AND STOCK APPRECIATION RIGHTS The following table contains information concerning the grant of stock options under our stock option plans and otherwise to the executive officers identified below during the 2003 fiscal year. Option Grants in Last Fiscal Year (Individual Grants) NUMBER OF PERCENT OF TOTAL SECURITIES OPTIONS/SARS UNDERLYING GRANTED TO OPTIONS/SARS EMPLOYEES IN EXERCISE OR BASE NAME GRANTED (#) FISCAL YEAR PRICE ($/SHARE)(1) EXPIRATION DATE - ----------------------------- ------------------- ------------------ ------------------- ------------------ Dr. Firestone.............. 584,600 67 0.40 2/24/2013 Mr. Rossettos.............. 292,030(2) 33 0.40 2/24/2013 - ----------- (1) Exercise price is based on the closing sale price of our common stock on the last trading day preceding the grant date. (2) Option vests 50 percent on February 24, 2004 and 50 percent on February 24, 2005. 28

OPTION EXERCISE AND HOLDINGS The following table provides information with respect to the executive officers named below concerning the exercisability of options during the 2003 fiscal year and unexercisable options held as of the end of the 2003 fiscal year. No stock appreciation rights were exercised during the 2003 fiscal year, and no stock appreciation rights were outstanding at the end of that fiscal year. Aggregated Option Exercises in Last Fiscal Year and Fiscal Year-End Option Values - ----------------------------- -------------- ---------------- -------------------------------- ------------------------------------ VALUE OF UNEXERCISED IN-THE-MONEY NO. OF SECURITIES UNDERLYING OPTIONS/SARS AT FY-END (MARKET UNEXERCISED OPTIONS/SARS AT PRICE OF SHARES AT FY-END LESS SHARES FY-END (#) EXERCISE PRICE) ($)(2) ACQUIRED VALUE -------------------------------- ------------------------------------ NAME ON EXERCISE REALIZED (1) EXERCISABLE UNEXERCISABLE EXERCISABLE UNEXERCISABLE - ----------------------------- -------------- ---------------- -------------- ----------------- ----------------- ------------------ Dr. Firestone 0 -- 584,600 0 689,828 0 - ----------------------------- -------------- ---------------- -------------- ----------------- ----------------- ------------------ Mr. Rossettos 0 -- 208,515 158,515 192,573 176,423 - ----------------------------- -------------- ---------------- -------------- ----------------- ----------------- ------------------ - ----------- (1) Equal to the fair market value of the purchased shares at the time of the option exercise over the exercise price paid for those shares. (2) Based on the fair market value of our common stock on December 31, 2003 of $1.58 per share, the closing sales price per share on that date on the OTC Bulletin Board. LONG TERM INCENTIVE PLAN AWARDS No long term incentive plan awards were made to any of our executive officers during the last fiscal year. COMPENSATION OF DIRECTORS Non-employee directors are eligible to participate in an automatic stock option grant program pursuant to the 1995 stock option plan. Non-employee directors are granted an option for 10,000 shares of common stock upon their initial election or appointment to the board and an option for 2,000 shares of common stock on the date of each annual meeting of our stockholders for those non-employee directors continuing to serve after that meeting. During 2003 our board members did not receive any cash compensation for their services as directors, although directors are reimbursed for reasonable expenses incurred in connection with attending meetings of the board and of committees of the board. EMPLOYMENT AGREEMENTS LEONARD FIRESTONE, M.D. Upon completion of the merger transaction with Manhattan Research Development, Inc. on February 21, 2003, Leonard Firestone, M.D. was appointed President and Chief Executive Officer. Dr. Firestone's employment with us is governed by a January 2003 employment agreement originally entered into between he and Manhattan Research Development, which we assumed following the merger. The agreement provides for term of employment that may be extended for additional one (1) year periods thereafter. Dr. Firestone was entitled to receive a base salary equal to $250,000 and up to an additional $150,000 upon the successful achievement of certain performance based milestones. In addition, in accordance with his employment agreement, upon the completion of the Manhattan Research Development merger, Dr. Firestone received an option to purchase an aggregate of 584,600 shares of our common stock at a price of $0.40 per share. The option vested on January 2, 2004. 29

We entered into a new employment agreement with Dr. Firestone dated January 2, 2004. Under the terms of his new employment agreement, Dr. Firestone is entitled to a base salary of $325,000 per year and a guaranteed bonus of $75,000 payable on each anniversary of the employment agreement so long as Dr. Firestone remains employed by us, and up to an additional $200,000 upon the achievement of certain performance related milestones. In addition, Dr. Firestone is eligible to receive a discretionary bonus in an amount up to his base salary, as determined by the board of directors in its discretion. We also agreed to grant to Dr. Firestone options to purchase an additional 600,000 shares of our common stock under our 2003 Stock Option Plan, which option will vest in two equal installments on the first and second anniversaries of his employment agreement. NICHOLAS J. ROSSETTOS Mr. Rossettos' employment with us is pursuant to a February 2003 employment agreement. This agreement has a two-year term ending on February 21, 2005, which may be extended for additional one (1) year periods thereafter. Under the agreement, Mr. Rossettos is entitled to an annual salary of $150,000 in addition to health, disability insurance and other benefits. Pursuant to his employment agreement, on February 24, 2003, Mr. Rossettos was granted an option to purchase an aggregate of 1,460,150 shares of common stock at a price of $0.40 per share. The option vests in two equal installments on each of February 24, 2004 and February 24, 2005. Mr. Rossettos and his dependents are eligible to receive paid medical and long term disability insurance and such other health benefits as we make available to other senior officers and directors. Mr. Rossettos reports to the Chief Executive Officer and President. JOSHUA KAZAM Mr. Kazam provides services to our company pursuant to a consulting agreement dated March 1, 2003. The consulting agreement provides that Mr. Kazam will render services to us in connection with corporate financing activities and preparation of grant applications that we may from time to time need. We are required to pay to Mr. Kazam $4,167 per month during the term of the consulting agreement. The consulting agreement provides for a term of one year, which may be extended for 30 day periods thereafter. The consulting agreement also provides that either we or Mr. Kazam may terminate the agreement upon 30 days' notice. MICHAEL WEISER, M.D., PH.D. Dr. Weiser provides services to our company pursuant to a consulting agreement dated March 1, 2003. The consulting agreement provides that Dr. Weiser will provide scientific advisory services to us in the areas of obesity and drug delivery. We are required to pay to Dr. Weiser $6,250 per month during the term of the consulting agreement. The consulting agreement provides for a term of one year, which may be extended for 30 day periods thereafter. The consulting agreement also provides that either we or Mr. Kazam may terminate the agreement upon 30 days' notice. 30

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT The following table sets forth certain information regarding beneficial ownership of the our common stock as of January 12, 2004, by (i) each person known by us to be the beneficial owner of more than 5 percent of the outstanding common stock, (ii) each director, (iii) each executive officer, and (iv) all executive officers and directors as a group. The number of shares beneficially owned is determined under rules promulgated by the SEC, and the information is not necessarily indicative of beneficial ownership for any other purpose. Under those rules, beneficial ownership includes any shares as to which the individual has sole or shared voting power or investment power and also any shares which the individual has the right to acquire within 60 days of the date hereof, through the exercise or conversion of any stock option, convertible security, warrant or other right. Including those shares in the tables does not, however, constitute an admission that the named stockholder is a direct or indirect beneficial owner of those shares. Unless otherwise indicated, each person or entity named in the table has sole voting power and investment power (or shares that power with that person's spouse) with respect to all shares of capital stock listed as owned by that person or entity. Unless otherwise indicated, the address of each of the following persons is 787 Seventh Avenue, 48th Floor, New York, New York 10019. SHARES NAME BENEFICIALLY OWNED PERCENT OF CLASS ---- ------------------ ---------------- Leonard Firestone(1)................................. 584,060 2.1 Nicholas J. Rossettos(2)............................. 208,515 * Joshua Kazam......................................... 244,025 * Michael Weiser....................................... 1,367,561 5.1 Joan Pons(3)......................................... 4,157,037 15.5 David M. Tanen(4).................................... 377,814 1.4 All directors and officers as a group (5) 6,939,012 26.6 Lindsay A. Rosenwald(6).............................. 3,345,961 12.4 Oleoylestrone Developments, SL(7).................... 4,157,037 15.5 Josep Samitier 1-5, Barcelona Science Park 08028 Barcelona Spain Jay Lobell(8)........................................ 4,078,890 15.1 365 West End Avenue New York, New York 10024 - ----------- * Less than 1.0% (1) Includes 584,060 shares issuable upon the exercise (at a price of $0.40 per share) of a vested option. (2) Includes shares underlying options that are currently exercisable, or will be exercisable within 60 days: (i) 10,000 shares issuable upon exercise at a price of $20.94 per share; (ii) 10,000 shares issuable upon exercise at a price of $4.375 per share of an option; (iii) 17,500 shares issuable upon the exercise at a price of $1.25 per share; (iv) 25,000 shares issuable upon exercise at a price of $1.00 per share; and (v) 146,015 shares issuable upon exercise at a price of $0.40 per share. Does not include the following shares issuable upon exercise of options that are not currently exercisable: (a) 146,015 shares issuable upon the exercise (at a price of $0.40 per share) of an option that vests on February 24, 2005; (b) 2,500 shares issuable upon the exercise (at a price of $1.25 per share) of an option vesting on February 19, 2005; and (c) 10,000 shares issuable upon the exercise (at a price of $1.25 per share) of an option that vests in February 2007. (3) Represents shares beneficially owned by Oleoylestrone Developments, SL, of which Mr. Pons is chief executive officer. 31

(4) Includes shares underlying options that are currently exercisable, or will be exercisable within 60 days: (i) 8,833 shares issuable upon exercise at a price of $1.25 per share and (ii) 400 shares issuable upon exercise at a price of $0.40 per share. Does not include the following shares issuable upon exercise of options that are not currently exercisable: (i) 667 shares issuable upon exercise (at a price of $1.25 per share) of an option that vests on January 28, 2005 and (ii) 2,500 shares issuable upon exercise (at a price of $1.25 per share) of an option that vests on January 28, 2005. (5) Includes 801,808 shares issuance upon exercise of options. Does not include any shares held by Oleoylestrone Developments, SL, of which Mr. Pons is chief executive officer. (6) Includes 221,109 shares of common stock issuable upon conversion of 24,322 shares of Series A Convertible Preferred Stock held by Dr. Rosenwald. Dr. Rosenwald is the sole owner of both Huntington Street Corporation and June Street Corporation. Dr. Rosenwald is also the Chairman of Paramount Capital, Inc. Dr. Weiser and Messrs. Kazam and Tanen are employed by Paramount Capital, Inc. or one of its affiliates. (7) Mr. Pons is the chief executive officer of Oleoylestrone Developments, SL. (8) Includes 88,345 shares of common stock issuable upon conversion of 9,718 shares of Series A Convertible Preferred Stock held by Mr. Lobell. Also includes 3,788,441 shares of common stock held by eight separate trusts with respect to which Mr. Lobell is either trustee or manager and in either case has investment and voting power, including 220,855 shares of common stock issuable upon conversion of 24,294 shares of Series A Convertible Preferred Stock. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS Pursuant to the terms of a license agreement dated February 15, 2002 by and between Manhattan Research Development, Inc., our wholly owned subsidiary, and Oleoylestrone Developments, SL, we have an exclusive, worldwide license to U.S. and foreign patents and patent applications relating to certain technologies. Although we are not obligated to pay royalties to Oleoylestrone Developments, the license agreement requires us to make certain performance-based milestone payments. See "Business - Intellectual Property." As a result of our acquisition of Manhattan Research Development in February 2003, Oleoylestrone Developments owns approximately 16 percent of our outstanding common stock. Additionally, Mr. Pons, a member of our board of directors, is chief executive officer of Oleoylestrone Developments. We believe that our agreement with Oleoylestrone Developments was made on terms no less favorable to us than could have been obtained from unaffiliated third parties. Dr. Weiser and Mr. Kazam, directors of our company, each provide consulting services to us pursuant in exchange for monthly compensation of $6,250 and $4,167, respectively. See "Management - Employment Agreements." Dr. Weiser and Messrs. Kazam and Tanen, all of whom are directors of our company, are employees of Paramount Capital, Inc. or its affiliates, a corporation of which Dr. Lindsay A. Rosenwald is the chairman and sole shareholder. Dr. Rosenwald beneficially owns approximately 12.4 percent of our common stock and various trusts established for the benefit of Dr. Rosenwald or members of his immediate family beneficially own 14.2 percent of our outstanding common stock. Collectively, Dr. Weiser and Messrs. Kazam and Tanen beneficially own 7.4 percent of our outstanding common stock. 32

MARKET FOR COMMON EQUITY AND RELATED STOCKHOLDER MATTERS MARKET FOR COMMON STOCK Our common stock was listed on the Nasdaq SmallCap Market until August 2001 and since that times it has been quoted on the Over-the-Counter Bulletin Board, or "OTC Bulletin Board." Our common stock trades on the OTC Bulletin Board under the symbol "MHTT.OB." The following table lists the high and low price for our common stock (as adjusted for our 1-for-5 stock combination effected on September 25, 2003) as quoted on the OTC Bulletin Board during each quarter within the last two fiscal years: PRICE RANGE --------------- --- --------------- QUARTER ENDED HIGH LOW - --------------------------------------------- --------------- --------------- March 31, 2002.............................. $1.500 $0.800 June 30, 2002............................... 1.700 0.600 September 30, 2002.......................... 0.950 0.500 December 31, 2002........................... 0.850 0.250 March 31, 2003.............................. $0.850 $0.250 June 30, 2003............................... 1.650 0.600 September 30, 2003.......................... 2.500 1.100 December 31, 2003........................... 2.000 1.200 The quotations from the OTC Bulletin Board reflect inter-dealer prices, without retail mark-up, mark-down or commission, and may not represent actual transactions. RECORD HOLDERS The number of holders of record of our common stock as of January 9, 2004 was 370. The number of record holders of our Series A Convertible Preferred Stock was 154 as of January 2, 2004. DIVIDENDS We have not paid or declared any dividends on our common stock and we do not anticipate paying dividends on our common stock in the foreseeable future. USE OF PROCEEDS We will not receive any proceeds from the resale of any of the shares offered by this prospectus by the selling stockholders. 33

SELLING STOCKHOLDERS The following table sets forth the number of shares of the common stock owned by the selling stockholders as of January 12, 2004, and after giving effect to this offering. NUMBER OF NUMBER OF SHARES SHARES OFFERED BY OFFERED BY NUMBER OF SELLING SELLING OUTSTANDING STOCKHOLDER STOCKHOLDER PERCENTAGE SHARES SHARES ISSUABLE UPON ISSUABLE BENEFICIAL BEFEFICIALLY OFFERED BY CONVERSION UPON OWNERSHIP OWNED BEFORE SELLING OF SERIES A EXERCISE AFTER NAME OFFERING(1) STOCKHOLDER STOCK(1) OF WARRANTS OFFERING ---------------------------------------- -------------- -------------- -------------- -------------- -------------- SHARES ISSUED IN CONNECTION WITH JANUARY 2004 PRIVATE PLACEMENT Atlas Fund,LLC............................. 1,818,181 1,818,181 0 0 -- MHR Capital Partners, L.P.................. 1,323,186 764,988 0 0 -- Jacob Gottlieb ............................ 2,045,453(2) 227,272 0 0 -- Mark Rechesky.............................. 454,546 454,546 0 0 -- Hillel Goldstein........................... 14,546 14,546 0 0 -- Sai Devabhaktuni........................... 45,455 45,455 0 0 -- Mark Rosenberg............................. 9,091 9,090 0 0 -- Emily Fine................................. 18,182 18,181 0 0 -- Tariq Fancy................................ 2,728 2,728 0 0 -- Luciano M. Murelli......................... 13,650 13,650 0 0 -- Paramount Capital, Inc..................... 925,576 0 0 326,499 -- Subtotal: 3,368,637 326,499 SHARES ISSUED IN CONNECTION WITH SERIES A PREFERRED STOCK PRIVATE PLACEMENT Allied Diesel Service, Inc. Employee Profit Sharing Plan....................... 24,290 0 24,290 0 -- Alfonse M. D'Amato Defined Benefit Plan..... 97,180 0 97,180 0 -- Andrew Grossman D/C Profit Sharing Plan..... 25,887 0 24,290 0 * Anthony Argyrides........................... 26,498 0 24,290 2,208 -- Anthony Polak "S"........................... 181,670(3) 0 24,290 0 * Anthony Polak IRA........................... 181,670(3) 0 24,290 0 * Artero Inc.................................. 132,500 0 58,310 0 * Artero Profit Sharing Plan.................. 27,900 0 24,290 0 * Asher Family Trust.......................... 48,590 0 48,590 0 -- Autobuy Inc................................. 24,290 0 24,290 0 -- Barbara Coffee.............................. 24,290 0 24,290 0 -- Barbara Scharf.............................. 24,290 0 24,290 0 -- Bill McCurtain.............................. 24,290 0 24,290 0 -- Brapo Associates............................ 24,290 0 24,290 0 -- Bruce Gomberg............................... 24,290 0 24,290 0 -- Catharina Polak Trust....................... 24,290 0 24,290 0 -- Catherine Hicks............................. 24,290 0 24,290 0 -- Charles Harris.............................. 97,180 0 97,180 0 -- Charles Re Profit Sharing Plan.............. 26,287 0 24,290 0 * Daniel Berkowitz IRA........................ 24,790 0 24,290 0 * David Lasco................................. 97,180 0 97,180 0 -- David Minkoff............................... 26,498 0 24,290 2,208 -- David Phipps................................ 24,290 0 24,290 0 -- David Swerdloff IRA......................... 24,290 0 24,290 0 -- Davis & Barbara Gaynes...................... 24,290 0 24,290 0 -- Dean M. Erickson '79 Irrevocable Trust...... 68,020 0 68,020 0 -- Domanco Ventura Capital..................... 24,290 0 24,290 0 -- 34

NUMBER OF NUMBER OF SHARES SHARES OFFERED BY OFFERED BY NUMBER OF SELLING SELLING OUTSTANDING STOCKHOLDER STOCKHOLDER PERCENTAGE SHARES SHARES ISSUABLE UPON ISSUABLE BENEFICIAL BEFEFICIALLY OFFERED BY CONVERSION UPON OWNERSHIP OWNED BEFORE SELLING OF SERIES A EXERCISE AFTER NAME OFFERING(1) STOCKHOLDER STOCK(1) OF WARRANTS OFFERING ---------------------------------------- -------------- -------------- -------------- -------------- -------------- Drew Netter IRA............................. 24,290 0 24,290 0 -- Edgar & Kim Massabni........................ 24,290 0 24,290 0 -- Edward Lewitt............................... 24,290 0 24,290 0 -- Elias Sayour Foundation..................... 25,942 0 24,290 0 * Elizabeth Genzer Trust...................... 24,290 0 24,290 0 -- Elliot & Ronald Fatoullah................... 25,617 0 24,290 0 * Emeric R. Holderith......................... 9,720 0 9,720 0 -- Equity Interest Inc......................... 24,290 0 24,290 0 -- Far Ventures................................ 32,893 0 24,290 0 * Florence E. Luvera.......................... 24,290 0 24,290 0 -- Frederick Polak............................. 25,090 0 24,290 0 * Gary Stadtmauer............................. 24,290 0 24,290 0 -- Girish C. Sham.............................. 24,290 0 24,290 0 -- Harari Family LLC........................... 24,290 0 24,290 0 -- Howard Tooter............................... 24,290 0 24,290 0 -- Jack Polak.................................. 24,290 0 24,290 0 -- Jerry & Lilli Weinger....................... 97,180 0 97,180 0 -- Joan Grillo................................. 24,290 0 24,290 0 -- John Gross IRA.............................. 24,885 0 24,290 0 * Jon Rubin Trust............................. 24,290 0 24,290 0 -- Jonathan Rothchild.......................... 134,300 0 87,460 0 * Jonathan Young IRA.......................... 48,590 0 48,590 0 -- Joseph & Dorothy Papp....................... 24,290 0 24,290 0 -- Joseph Cavanagh............................. 97,180 0 97,180 0 -- Judith & Jerry Huff......................... 9,720 0 9,720 0 -- Kevin Clarke IRA............................ 24,290 0 24,290 0 -- Kim Cirelli................................. 24,290 0 24,290 0 -- Landing Wholesale Group Defined............. 19,440 0 19,440 0 -- Larry & Rebecca Warner...................... 11,660 0 11,660 0 -- Lee Pearlmutter Trust....................... 9,7200 0 9,720 0 -- Leonard Greenbaum........................... 35,333 0 24,290 11,043 -- Leslie & Sybil Rosenberg.................... 24,290 0 24,290 0 -- Mark Engelbert.............................. 24,290 0 24,290 0 -- Margrit Polak "S"........................... 24,630 0 24,290 0 * Mark Children's Trust....................... 24,290 0 24,290 0 -- Maura Kelly................................. 24,290 0 24,290 0 -- Michael & Lorraine Gelardi.................. 25,290 0 24,290 0 * Michael Berlinger........................... 24,290 0 24,290 0 -- Michael Stone............................... 48,590 0 48,590 0 -- Michele Tarica.............................. 24,290 0 24,290 0 -- MRC Computer Profit Sharing Plan............ 24,590 0 24,290 0 * Murray & Claire Stadtmauer.................. 24,590 0 24,290 0 * Nancy Lane.................................. 24,290 0 24,290 0 -- Nanette Grossman............................ 24,290 0 24,290 0 -- Norton & Joan Hight......................... 24,690 0 24,290 0 * Paul McMillman & Susan Herzog............... 24,290 0 24,290 0 -- Penny Chin.................................. 7,290 0 7,290 0 -- Peter Guardino IRA.......................... 24,290 0 24,290 0 -- Philip Wasserman............................ 24,290 0 24,290 0 -- 35

NUMBER OF NUMBER OF SHARES SHARES OFFERED BY OFFERED BY NUMBER OF SELLING SELLING OUTSTANDING STOCKHOLDER STOCKHOLDER PERCENTAGE SHARES SHARES ISSUABLE UPON ISSUABLE BENEFICIAL BEFEFICIALLY OFFERED BY CONVERSION UPON OWNERSHIP OWNED BEFORE SELLING OF SERIES A EXERCISE AFTER NAME OFFERING(1) STOCKHOLDER STOCK(1) OF WARRANTS OFFERING ---------------------------------------- -------------- -------------- -------------- -------------- -------------- Randall Hight............................... 48,710 0 48,590 0 * Richard Kent................................ 97,180 0 97,180 0 -- Richard Wallace............................. 24,290 0 24,290 0 -- RL Capital Partners......................... 26,191 0 242,940 0 * Robert Nash................................. 24,290 0 24,290 0 -- Robert Rosenberg............................ 24,290 0 24,290 0 -- Robert Shapiro.............................. 24,390 0 24,290 0 * Fiserve Securities A/C/F Roger R. Marks IRA................................. 24,687 0 24,290 0 * Rolanda Mendelle............................ 24,290 0 24,290 0 -- Ronald Lazar................................ 29,692 0 24,290 61,837 * Ronald Lazar IRA............................ 78,282 0 72,880 0 * Royal Pool.................................. 24,290 0 24,290 0 -- Scott & Charlotte Kaiden.................... 24,290 0 24,290 0 -- Sheila Fligel............................... 24,290 0 24,290 0 -- Siegfried Mangels........................... 24,290 0 24,290 0 -- Sim Farar................................... 97,180 0 97,180 0 -- Steve Roman................................. 24,290 0 24,290 0 -- Surinvest, Inc.............................. 48,590 0 48,590 0 -- Susan Zverin................................ 24,690 0 24,290 0 * Teddy Chasanoff............................. 24,290 0 24,290 0 -- Tim Moi..................................... 9,720 0 9,720 0 -- William & Deborah Hicks..................... 9,720 0 9,720 0 -- William H. Peterson Living Trust............ 48,590 0 48,590 0 -- William Liange.............................. 24,290 0 24,290 0 -- Wolfe F. Model.............................. 24,687 0 24,290 0 * Albert Fried, Jr............................ 48,590 0 48,590 0 -- Alexander Pomper............................ 48,590 0 48,590 0 -- Alfred J. Sollami........................... 53,540 0 53,450 0 -- Balanced Invesment LLC...................... 348,028 0 242,940 0 * Benito Bucay................................ 24,290 0 24,290 0 -- Bruno Widmer................................ 24,290 0 24,290 0 -- Cooper A. McIntosh, MD...................... 24,290 0 24,290 0 -- David Jaroslawicz........................... 97,180 0 97,180 0 -- David J. Bershad............................ 72,880 0 72,880 0 -- David W. Ruttenberg......................... 48,590 0 48,590 0 -- E & M RP Trust.............................. 145,770 0 145,770 0 -- Eugenia VI Venture Holdings, Ltd............ 485,890 0 485,890 0 -- Gary Strauss................................ 64,140 0 64,140 0 -- Hahn Family Grandchildrens Trust............ 48,590 0 48,590 0 -- Harry & Susan Newton........................ 99,180 0 97,180 0 * Howard Gittis............................... 97,180 0 97,180 0 -- Isaac & Ivette Dabah 2002 Trust............. 97,180 0 97,180 0 -- James Daly.................................. 24,290 0 24,290 0 -- J. Jay Lobell...............................4,078,890(4) 0 97,180 0 14.8 Jose & Magdalena Sanchez-Padilla............ 24,290 0 24,290 0 -- Joseph Hickey............................... 97,180 0 97,180 0 -- Joseph Natiello............................. 97,180 0 97,180 0 -- Joseph Vale................................. 194,350 0 194,350 0 -- Keys Foundation............................. 583,060 0 583,060 0 -- 36

NUMBER OF NUMBER OF SHARES SHARES OFFERED BY OFFERED BY NUMBER OF SELLING SELLING OUTSTANDING STOCKHOLDER STOCKHOLDER PERCENTAGE SHARES SHARES ISSUABLE UPON ISSUABLE BENEFICIAL BEFEFICIALLY OFFERED BY CONVERSION UPON OWNERSHIP OWNED BEFORE SELLING OF SERIES A EXERCISE AFTER NAME OFFERING(1) STOCKHOLDER STOCK(1) OF WARRANTS OFFERING ---------------------------------------- -------------- -------------- -------------- -------------- -------------- Rosenwald 2000 Family Trust................. 520,011 0 242,940 0 1.0 Larry & Shirley Kessel...................... 24,290 0 24,290 0 -- Lindsay A. Rosenwald, M.D...................2,536,864 0 243,220 0 8.6 Marc Florin IRA............................. 48,590 0 48,590 0 -- Mario Pasquel & Begona Miranda.............. 29,150 0 29,150 0 -- Mega International Corp..................... 29,150 0 29,150 0 -- Michael H. Schwartz Profit Sharing Plan..... 48,590 0 48,590 0 -- PCC Tagi (Series K) LLC..................... 971,770 0 971,770 0 -- Perceptive Life Sciences Master Fund, Ltd....................................... 291,530 0 291,530 0 -- Quogue Capital, LLC......................... 97,180 0 97,180 0 -- Regen Capital II............................ 48,590 0 48,590 0 -- Rene Dominguez.............................. 14,580 0 14,580 0 -- Richard Molinsky............................ 48,590 0 48,590 0 -- Robert J. Leaf.............................. 48,590 0 48,590 0 -- Roberto Segovia............................. 26,636 0 24,290 0 * Roger & Margaret Coleman.................... 48,590 0 48,590 0 -- Roger Lipton................................ 48,590 0 48,590 0 -- Scott A. Katzmann........................... 106,890 0 106,890 0 -- Scott Whitaker.............................. 24,290 0 24,290 0 -- Simon Family Trust dtd 1/21/83.............. 24,290 0 24,290 0 -- Steven M. Oliveira 1998 Charitable.......... 48,590 0 48,590 0 -- The Alfred J. Anzalone Family Limited....... 48,590 0 48,590 0 -- Tis Prager.................................. 72,880 0 72,880 0 -- Tokenhouse Trading S.P...................... 194,085 0 97,180 0 * Vitel Ventures Corporation ................. 242,890 0 242,940 0 -- Winton Capital Holdings Ltd................. 242,940 0 242,940 0 -- Wolcot Capital, Inc......................... 48,590 0 48,590 0 -- ZWD Investments, LLC........................ 485,890 0 485,890 0 -- David Fresne................................ 20,320 0 0 20,320 -- Kevin Cannon................................ 17,667 0 0 17,667 -- Eric Foster................................. 2,208 0 0 2,208 -- Anthony Polak............................... 181,670(3) 0 0 132,495 * Isaiah Edwards.............................. 6,625 0 0 6,625 -- Rod Dudley.................................. 4,417 0 0 4,417 -- Robin Arias................................. 4,417 0 0 4,417 -- Tim Moi..................................... 884 0 0 884 -- Daniel D'Amato.............................. 20,540 0 0 20,540 -- Joe Jaigobind............................... 17,668 0 0 17,668 -- Chirag Choudrey............................. 2,208 0 0 2,208 -- Joe Richman................................. 3,268 0 0 3,268 -- Paramount Capital, Inc...................... 925,576 0 0 599,077 -- SUBTOTAL: 0 10,000,000 909,090 37

NUMBER OF NUMBER OF SHARES SHARES OFFERED BY OFFERED BY NUMBER OF SELLING SELLING OUTSTANDING STOCKHOLDER STOCKHOLDER PERCENTAGE SHARES SHARES ISSUABLE UPON ISSUABLE BENEFICIAL BEFEFICIALLY OFFERED BY CONVERSION UPON OWNERSHIP OWNED BEFORE SELLING OF SERIES A EXERCISE AFTER NAME OFFERING(1) STOCKHOLDER STOCK(1) OF WARRANTS OFFERING ---------------------------------------- -------------- -------------- -------------- -------------- -------------- SHARES ISSUED IN CONNECTION WITH JANUARY 2003 OFFERING BY MANHATTAN RESEARCH DEVELOPMENT, INC. Robert L. McEntire.......................... 174,757 158,870 0 15,887 -- Stanley & Lucile Slocum.................... 174,757 158,870 0 15,887 -- Paul & Teri Salwasser....................... 79,014 71,080 0 7,934 -- Donald Halla................................ 79,014 71,080 0 7,934 -- William E. Froelich III..................... 79,014 71,080 0 7,934 -- Jean Melchior............................... 79,014 71,080 0 7,934 -- Alabama Properties LLC 79,014 71,080 0 7,934 -- Fred Mancheski.............................. 79,014 71,080 0 7,934 -- John O. Dunkin.............................. 79,014 71,080 0 7,934 -- Louis Reif.................................. 79,014 71,080 0 7,934 -- Neel B. Ackerman, Jr. & and Martha N. Ackerman.................................. 79,014 71,080 0 7,934 -- Mike Pinney................................. 79,014 71,080 0 7,934 -- William & Lynette Duffel.................... 79,014 71,080 0 7,934 -- Jan Arnett.................................. 79,014 71,080 0 7,934 -- The Bahr Family Limited Partnership......... 79,014 71,080 0 7,934 -- Rauls Family Limited Partnership............ 524,273 476,612 0 47,661 -- Richard Addeo............................... 349,516 317,742 0 31,774 -- Barry J. Lind Revocable Trust............... 267,136 238,306 0 28,830 -- John G. Pollock............................. 44,738 40,671 0 4,067 -- Michael O'Brien............................. 43,689 39,717 0 3,972 -- James Bistrow............................... 43,689 39,717 0 3,972 -- Thomas & Tasha Worden....................... 43,689 39,717 0 3,972 -- Arturo Filipe............................... 43,689 39,717 0 3,972 -- Wayne Adams................................. 43,689 39,717 0 3,972 -- Joan & Robert Johnsen....................... 43,689 39,717 0 3,972 -- Jerrold F. Rosenbaum........................ 43,689 39,717 0 3,972 -- Walter Lukens............................... 43,689 39,717 0 3,972 -- Robert Edgley............................... 43,689 39,717 0 3,972 -- David O. Lind............................... 43,689 39,717 0 3,972 -- Arno D. Hausmann............................ 43,689 39,717 0 3,972 -- Frank T. Donaldson.......................... 43,689 39,717 0 3,972 -- Gat Lee..................................... 43,689 39,717 0 3,972 -- Vetter Builders, Inc........................ 43,689 39,717 0 3,972 -- Joseph P. Metz.............................. 43,689 39,717 0 3,972 -- Ronald Cowan................................ 43,689 39,717 0 3,972 -- Peter & Barbara Freyburger.................. 43,689 39,717 0 3,972 -- Isaac Dweck................................. 43,689 39,717 0 3,972 -- Derek Soliday............................... 43,689 39,717 0 3,972 -- Kenneth Hornik.............................. 43,689 39,717 0 3,972 -- Andrew Gamba................................ 43,689 39,717 0 3,972 -- David M. Cikanek Revocable Living Trust dtd 9/8/2000........................ 43,689 39,717 0 3,972 -- Lester Krasno............................... 43,689 39,717 0 3,972 -- Hyman Lezell Trust.......................... 43,689 39,717 0 3,972 -- Ronald Bartsch.............................. 43,689 39,717 0 3,972 -- JC Investments.............................. 347,868 284,320 0 63,548 -- Stanley & Lynn Sides........................ 26,213 23,830 0 2,383 -- Med-Tec Investors........................... 43,689 39,717 0 3,972 -- Kevin Klier................................. 43,689 39,717 0 3,972 -- Greg Dovolis................................ 43,689 39,717 0 3,972 -- Louis Cerbone............................... 43,689 39,717 0 3,972 -- Paul Martin................................. 69,903 63,548 0 6,355 -- William S. Tyrell........................... 43,689 39,717 0 3,972 -- 38

NUMBER OF NUMBER OF SHARES SHARES OFFERED BY OFFERED BY NUMBER OF SELLING SELLING OUTSTANDING STOCKHOLDER STOCKHOLDER PERCENTAGE SHARES SHARES ISSUABLE UPON ISSUABLE BENEFICIAL BEFEFICIALLY OFFERED BY CONVERSION UPON OWNERSHIP OWNED BEFORE SELLING OF SERIES A EXERCISE AFTER NAME OFFERING(1) STOCKHOLDER STOCK(1) OF WARRANTS OFFERING ---------------------------------------- -------------- -------------- -------------- -------------- -------------- Richard Pollak.............................. 41,942 38,129 0 3,813 -- Theresa Incagnoli........................... 27,961 25,419 0 2,542 -- R.J. Burkhalter............................. 17,476 15,887 0 1,589 -- Roger & Mary Bradshaw....................... 17,476 15,887 0 1,589 -- S. Alan Lisenby............................. 174,757 158,870 0 15,887 -- David & Nancy Pudelsky...................... 43,689 39,717 0 3,972 -- Gary Strauss................................ 55,922 50,838 0 5,084 -- Michael Mullen.............................. 509,205 0 0 509,205 -- Patricia Sorbara............................ 325,304 0 0 325,304 -- Michelle Markowitz.......................... 325,304 0 0 325,304 -- Robert Petrozzo............................. 142,983 0 0 142,983 -- Vito Balsamo................................ 95,322 0 0 95,322 -- Michael Tripodi............................. 39,811 0 0 39,811 -- Fabio Migliacci............................. 25,419 0 0 25,419 -- Charles M. Raspa............................ 21,842 0 0 21,842 -- Kris Destefano.............................. 15,887 0 0 15,887 -- Alexandra Milazzo........................... 12,709 0 0 12,709 -- Ross Insera................................. 11,942 0 0 11,942 -- Kevin Brody................................. 11,942 0 0 11,942 -- Leonard Inserra............................. 11,942 0 0 11,942 -- Ryan Reed................................... 11,942 0 0 11,942 -- Jeff Blake Woolf............................ 11,942 0 0 11,942 -- Scott Tierney............................... 9,928 0 0 9,928 -- Drew Tranchina.............................. 7,943 0 0 7,943 -- Alex Elejade................................ 7,943 0 0 7,943 -- Peter Orthos................................ 7,943 0 0 7,943 -- Anthony Stephen Mundy....................... 7,943 0 0 7,943 -- Harry Mucovic............................... 4,367 0 0 4,367 -- Lawrence Helbringer......................... 3,970 0 0 3,970 -- Michael Gordon.............................. 3,492 0 0 3,492 -- Subtotal: 4,223,066 0 2,100,195 ISSUANCES TO CONSULTANTS AND ADVISORS Stanley Heshka.............................. 25,419 0 0 25,419 -- Louis Arrone................................ 25,419 0 0 25,419 -- Joseph Vaselli.............................. 25,419 0 0 25,419 -- Larry Jameson............................... 25,419 0 0 25,419 -- Subtotal: 0 0 101,676 TOTALS 7,591,703 10,000,000 3,437,460 - ----------- * Less than 1%. (1) Includes shares of common stock issuable upon the conversion of Series A stock that are issuable as payment of 5 percent dividends payable during the two-year period commencing November 5, 2003. For purposes of this table, such shares have also been included in each selling stockholder's holdings in the "Shares beneficially owned before offering" column. (2) Includes 1,818,181 shares held by Atlas Fund, LLC, of which Mr. Gottlieb has voting and investment power. (3) Includes: (i) 24,290 shares issuable upon conversion of Series A Preferred Stock held in the name of Anthony Polak IRA, (ii) 24,290 shares issuable upon conversion of Series A Preferred Stock held in the name of Anthony Polak "S" and (iii) 132,495 shares issuable upon exercise of a warrant. (4) Includes 3,788,441 shares held by various trusts with respect to which Mr. Lobell is trustee or otherwise has investment or voting power, including the shares held by the Rosenwald 2000 Family Trust. 39

PLAN OF DISTRIBUTION We are registering the shares offered by this prospectus in part on behalf of the selling stockholders. The selling stockholders, which as used herein includes donees, pledgees, transferees or other successors-in-interest selling shares of common stock or interests in shares of common stock received after the date of this prospectus from a selling stockholder as a gift, pledge, partnership distribution or other transfer, may, from time to time, sell, transfer or otherwise dispose of any or all of their shares of common stock or interests in shares of common stock on any stock exchange, market or trading facility on which the shares are traded or in private transactions. These dispositions may be at fixed prices, at prevailing market prices at the time of sale, at prices related to the prevailing market price, at varying prices determined at the time of sale, or at negotiated prices. The selling stockholders may use any one or more of the following methods when disposing of shares or interests therein: o ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers; o block trades in which the broker-dealer will attempt to sell the shares as agent, but may position and resell a portion of the block as principal to facilitate the transaction; o purchases by a broker-dealer as principal and resale by the broker-dealer for its account; o an exchange distribution in accordance with the rules of the applicable exchange; o privately negotiated transactions; o short sales; o through the writing or settlement of options or other hedging transactions, whether through an options exchange or otherwise; o broker-dealers may agree with the selling stockholders to sell a specified number of such shares at a stipulated price per share; o a combination of any such methods of sale; and o any other method permitted pursuant to applicable law. The selling stockholders may, from time to time, pledge or grant a security interest in some or all of the shares of common stock owned by them and, if they default in the performance of their secured obligations, the pledgees or secured parties may offer and sell the shares of common stock, from time to time, under this prospectus, or under an amendment to this prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus. The selling stockholders also may transfer the shares of common stock in other circumstances, in which case the transferees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus. In connection with the sale of our common stock or interests therein, the selling stockholders may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of the common stock in the course of hedging the positions they assume. The selling stockholders may also sell shares of our common stock short and deliver these securities to close out their short positions, or loan or pledge the common stock to broker-dealers that in turn may sell these securities. The selling stockholders may also enter into option or other transactions with broker-dealers or other financial institutions or the creation of one or more derivative securities which require the delivery to such broker-dealer or other financial institution of shares offered by this prospectus, which shares such broker-dealer or other financial institution may resell pursuant to this prospectus (as supplemented or amended to reflect such transaction). 40

The aggregate proceeds to the selling stockholders from the sale of the common stock offered by them will be the purchase price of the common stock less discounts or commissions, if any. Each of the selling stockholders reserves the right to accept and, together with their agents from time to time, to reject, in whole or in part, any proposed purchase of common stock to be made directly or through agents. We will not receive any of the proceeds from this offering. Upon any exercise of the warrants by payment of cash, however, we will receive the exercise price of the warrants. The selling stockholders also may resell all or a portion of the shares in open market transactions in reliance upon Rule 144 under the Securities Act of 1933, provided that they meet the criteria and conform to the requirements of that rule. Paramount Capital, Inc. and Joseph Stevens & Co. are each deemed to be underwriters in connection with the offering of their respective shares under this prospectus because each of these selling stockholders are registered broker-dealers. Other selling stockholders and any broker-dealers that act in connection with the sale of securities might be deemed to be "underwriters" within the meaning of Section 2(11) of the Securities Act, and any commissions received by such broker-dealers and any profit on the resale of the securities sold by them while acting as principals might be deemed to be underwriting discounts or commissions under the Securities Act. To the extent required, the shares of our common stock to be sold, the names of the selling stockholders, the respective purchase prices and public offering prices, the names of any agents, dealer or underwriter, any applicable commissions or discounts with respect to a particular offer will be set forth in an accompanying prospectus supplement or, if appropriate, a post-effective amendment to the registration statement that includes this prospectus. In order to comply with the securities laws of some states, if applicable, the common stock may be sold in these jurisdictions only through registered or licensed brokers or dealers. In addition, in some states the common stock may not be sold unless it has been registered or qualified for sale or an exemption from registration or qualification requirements is available and is complied with. We have advised the selling stockholders that the anti-manipulation rules of Regulation M under the Exchange Act may apply to sales of shares in the market and to the activities of the selling stockholders and their affiliates. In addition, we will make copies of this prospectus (as it may be supplemented or amended from time to time) available to the selling stockholders for the purpose of satisfying the prospectus delivery requirements of the Securities Act. The selling stockholders may indemnify any broker-dealer that participates in transactions involving the sale of the shares against certain liabilities, including liabilities arising under the Securities Act. We have agreed to indemnify the selling stockholders against liabilities, including liabilities under the Securities Act and state securities laws, relating to the registration of the shares offered by this prospectus. We have agreed with the selling stockholders to keep the registration statement of which this prospectus constitutes a part effective until the earlier of (1) such time as all of the shares covered by this prospectus have been disposed of pursuant to and in accordance with the registration statement or (2) the date on which the shares may be sold pursuant to Rule 144(k) of the Securities Act. SHARES ELIGIBLE FOR FUTURE SALE Upon completion of this offering and assuming the issuance of all of the shares covered by this prospectus that are issuable upon the exercise or conversion of convertible securities, there will be 36,473,357 shares of our common stock issued and outstanding. The shares purchased in this offering will be freely tradable without registration or other restriction under the Securities Act, except for any shares purchased by an "affiliate" of our company (as defined in the Securities Act). 41

Our currently outstanding shares that were issued in reliance upon the "private placement" exemptions provided by the Act are deemed "restricted securities" within the meaning of Rule 144. Restricted securities may not be sold unless they are registered under the Securities Act or are sold pursuant to an applicable exemption from registration, including an exemption under Rule 144 of the Securities Act. The 18,689,916 restricted shares of our common stock that were issued in connection with the merger with Manhattan Research Development, Inc. will become eligible for resale on February 21, 2004, provided that all of the other requirements of Rule 144 can be satisfied. In general, under Rule 144 as currently in effect, any person (or persons whose shares are aggregated) including persons deemed to be affiliates, whose restricted securities have been fully paid for and held for at least one year from the later of the date of issuance by us or acquisition from an affiliate, may sell such securities in broker's transactions or directly to market makers, provided that the number of shares sold in any three month period may not exceed the greater of 1 percent of the then-outstanding shares of our common stock or the average weekly trading volume of our shares of common stock in the over-the-counter market during the four calendar weeks preceding the sale. Sales under Rule 144 are also subject to certain notice requirements and the availability of current public information about our company. After two years have elapsed from the later of the issuance of restricted securities by us or their acquisition from an affiliate, such securities may be sold without limitation by persons who are not affiliates under the rule. Following the date of this prospectus, we cannot predict the effect, if any, that sales of our common stock or the availability of our common stock for sale will have on the market price prevailing from time to time. Nevertheless, sales by existing stockholders of substantial amounts of our common stock could adversely affect prevailing market prices for our stock. DESCRIPTION OF CAPITAL STOCK GENERAL Our certificate of incorporation, as amended to date, authorizes us to issue up to 150,000,000 shares of common stock and 10,000,000 shares of preferred stock. Of the authorized preferred stock, 1,500,000 shares have been designated as Series A Convertible Preferred Stock, of which there are currently 1,000,000 shares issued and outstanding. As of January 12, 2004, we had 26,731,033 shares of common stock issued and outstanding. The transfer agent and registrar for both our common stock and our Series A Convertible Preferred Stock is Continental Stock Transfer and Trust Company, New York, New York.. COMMON STOCK Holders of our common stock are entitled to one vote for each share on all matters to be voted on by our stockholders. Holders of our common stock do not have any cumulative voting rights. Common stockholders are entitled to share ratably in any dividends that may be declared from time to time on the common stock by our board of directors from funds legally available for dividends. Holders of common stock do not have any preemptive right to purchase shares of common stock. There are no conversion rights or sinking fund provisions for our common stock. 42

SERIES A CONVERTIBLE PREFERRED STOCK CONVERSION Each Series A share is convertible at the holder's election and without any further consideration to us into approximately 9.1 shares of common stock The Series A shares will automatically convert into common stock upon the earlier of (i) the date that we complete a financing resulting in gross proceeds of at least $10 million (excluding the sale of the Series A shares themselves) based on a pre-money valuation of our company of at least $30 million, or (ii) at such time as the closing price of our common stock exceeds 200 percent of the Series A conversion price (i.e., $1.10) for a period of at least 20 consecutive trading days. REDEMPTION Provided that the resale of the shares of common stock issuable upon conversion of the Series A stock are registered under an effective registration statement filed with the SEC, after November 5, 2004 we may redeem the Series A stock at a redemption price equal to $10.00 per share. We are required to provide the Series A stockholders with at least 30 days' written notice of the redemption date and the Series A stockholders may convert their Series A shares at any time prior to the close of business on the redemption date. VOTING RIGHTS On all matters submitted for stockholder approval, each share of Series A stock shall be entitled to such number of votes as is equal to the number of common shares into which such preferred shares are convertible. In addition, so long as at least 50 percent of the number of Series A shares issued in connection with our private placement of such shares are outstanding, the affirmative vote of at least two-thirds of all outstanding Series A shares voting separately as a class shall be necessary to permit, effect or validate any one or more of the following: o the amendment, alteration or repeal of any provision of our certificate of incorporation or bylaws so as to adversely affect the relative rights and preferences of the Series A stock; o the declaration or payment of any dividend or distribution on any securities of our company other than the Series A stock; o the authorization, issuance or increase of any security ranking prior to or on parity with the Series A stock in connection with a dissolution, sale of all or substantially all of our assets or other "Liquidation Event," or with respect to the payment of any dividends or distributions; o the approval of any Liquidation Event; and o the effect any amendment of our certificate of incorporation or bylaws that would materially adversely affect the rights of the Series A stock. LIQUIDATION PREFERENCES Upon (i) the liquidation, dissolution or winding up of our company, whether voluntary or involuntary, (ii) the sale of all or substantially all of our assets, or (iii) a voluntary or involuntary bankruptcy, the holders of the Series A shares will be entitled to be paid, prior to any payments made to the holders of any securities ranking junior to the Series A shares, including common stockholders, an amount equal to $10.00 per share, plus any accrued dividends. 43

DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION FOR SECURITIES ACT LIABILITIES Pursuant to our certificate of incorporation and bylaws, we may indemnify an officer or director who is made a party to any proceeding, because of his position as such, to the fullest extent authorized by Delaware General Corporation Law, as the same exists or may hereafter be amended. In certain cases, we may advance expenses incurred in defending any such proceeding. To the extent that indemnification for liabilities arising under the Securities Act may be permitted to directors, officers or persons controlling our company pursuant to the foregoing provisions, we have been informed that, in the opinion of the Securities and Exchange Commission, such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable. If a claim for indemnification against such liabilities (other than the payment by us of expenses incurred or paid by a director, officer or controlling person of our company in the successful defense of any action, suit or proceeding) is asserted by any of our directors, officers or controlling persons in connection with the securities being registered, we will, unless in the opinion of our counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by us is against public policy as expressed in the Securities Act and will be governed by the final adjudication of that issue. ABOUT THIS PROSPECTUS This prospectus is not an offer or solicitation in respect to these securities in any jurisdiction in which such offer or solicitation would be unlawful. This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission. The registration statement that contains this prospectus (including the exhibits to the registration statement) contains additional information about our company and the securities offered under this prospectus. That registration statement can be read at the SEC web site or at the SEC's offices mentioned under the heading "Where You Can Find More Information." We have not authorized anyone else to provide you with different information or additional information. You should not assume that the information in this prospectus, or any supplement or amendment to this prospectus, is accurate at any date other than the date indicated on the cover page of such documents. WHERE YOU CAN FIND MORE INFORMATION Federal securities law requires us to file information with the SEC concerning our business and operations. Accordingly, we file annual, quarterly, and special reports, proxy statements and other information with the SEC. You can inspect and copy this information at the Public Reference Facility maintained by the SEC at Judiciary Plaza, 450 5th Street, N.W., Room 1024, Washington, D.C. 20549. You can receive additional information about the operation of the SEC's Public Reference Facilities by calling the SEC at 1-800-SEC-0330. The SEC also maintains a web site at http://www.sec.gov that contains reports, proxy and information statements and other information regarding companies that, like us, file information electronically with the SEC. VALIDITY OF COMMON STOCK Legal matters in connection with the validity of the shares offered by this prospectus will be passed upon by Maslon Edelman Borman & Brand, LLP, Minneapolis, Minnesota. 44

EXPERTS The consolidated financial statements of Manhattan Research Development, Inc. (formerly Manhattan Pharmaceuticals, Inc.) as of December 31, 2002, and for the year then ended and for the period from January 1, 2002 to December 31, 2002, as related to the period from August 6, 2001 (date of inception) to December 31, 2002, included in this prospectus, have been included herein in reliance on the report, which includes an explanatory paragraph relating to the Company's ability to continue as a going concern, of J.H. Cohn LLP, independent public accountants, given on the authority of that firm as experts in accounting and auditing. The consolidated financial statements of Manhattan Research Development, Inc. (formerly Manhattan Pharmaceuticals, Inc.) as of December 31, 2001, and for the period from August 1, 2001 (date of inception) to December 31, 2001, included in this prospectus, have been included herein in reliance on the report, which includes an explanatory paragraph relating to the Company's ability to continue as a going concern, of Weinberg & Company, P.A., independent public accountants, given on the authority of that firm as experts in accounting and auditing. CHANGES IN CERTIFYING ACCOUNTANT ATLANTIC TECHNOLOGY VENTURES, INC. On December 5, 2002, KPMG LLP declined to stand for re-election as the independent auditors of Atlantic Technology Ventures, Inc. (now known as Manhattan Pharmaceuticals, Inc.) ("Atlantic"). Atlantic thereafter engaged J.H. Cohn, LLP as its new independent auditors. The audit reports of KPMG on the consolidated financial statements of Atlantic Technology Ventures, Inc. and its subsidiaries (a development state company) as of and for the years ended December 31, 2001 and 2000, and for the period from July 13, 1993 (inception) to December 31, 2001, did not contain any adverse opinion or disclaimer of opinion, nor were they qualified or modified as to uncertainty, audit scope, or accounting principles, except as follows: KPMG's report on the consolidated financial statements as of and for the year ended December 31, 2001, contained a separate paragraph stating that "the Company has suffered recurring losses from operations and has limited liquid resources that raise substantial doubt about its ability to continue as a going concern. Management's plans in regard to these matters are also described in Note 1. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty." During the years ended December 31, 2001 and 2000 and the subsequent interim periods through December 5, 2002, there were no disagreements between Atlantic and KPMG on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure which disagreements, if not resolved to the satisfaction of KPMG, would have caused KPMG to make reference to the subject matter of the disagreement with its report. On December 5, 2002, Atlantic requested that KPMG provide a letter addressed to the Securities and Exchange Commission stating whether KPMG agrees with the above statements, and, if not, stating the respects in which KPMG does not agree. A copy of the letter provided by KPMG in response to that request, which is dated as of December 12, 2002, was filed as an exhibit to Atlantic's current report on Form 8-K filed with the SEC on December 12, 2002. On December 9, 2002, Atlantic engaged J.H. Cohn as its independent public accountants for the fiscal year ending December 31, 2002 and to audit its financial statements. During its two most recent fiscal years and the subsequent interim period preceding the engagement of J.H. Cohn, Atlantic did not consult J.H. Cohn on any matter requiring disclosure under Item 304(a)(2) of Regulation S-B promulgated by the SEC. The selection of J.H. Cohn was based on the recommendation of Atlantic's audit committee. 45

MANHATTAN RESEARCH DEVELOPMENT, INC. On January 23, 2003, Manhattan Research Development, Inc. (formerly Manhattan Pharmaceuticals, Inc.) ("Manhattan") dismissed Weinberg & Company, P.A. as Manhattan's independent auditors. Manhattan thereafter engaged J.H. Cohn, LLP as its new independent auditors. The audit report of Weinberg & Company, P.A. on the financial statements of Manhattan (a development state company) as of and for the year ended December 31, 2001 and for the period from August 6, 2001 (inception) to December 31, 2001, did not contain any adverse opinion or disclaimer of opinion, nor were they qualified or modified as to uncertainty, audit scope, or accounting principles, except as follows: Weinberg & Company's report on the consolidated financial statements as of and for the year ended December 31, 2001, contained a separate paragraph stating that: "The financial statements referred to above have been prepared assuming that the Company will continue as a going concern. As discussed in Notes 1 and 2 to the financial statements, the Company, which has suffered recurring losses from operations, completed a merger on February 21, 2003 with Manhattan Pharmaceuticals, Inc., which has also suffered recurring losses from operations. The combined Company will have limited resources. Such matters raise substantial doubt about the ability of the Company to continue as a going concern. Management's plan in regard to these matters are also described in Note 1. The financial statements referred to above do not include any adjustments that might result from the outcome of this uncertainty." During the period from August 6, 2001 (date of inception) through December 31, 2001, there were no disagreements between Manhattan and Weinberg & Company, P.A. on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure which disagreements, if not resolved to the satisfaction of Weinberg & Company, P.A., would have caused Weinberg & Company, P.A. to make reference to the subject matter of the disagreement with its report. Since at the time of Manhattan's dismissal of Weinberg & Company, P.A. Manhattan was a privately-held company and not subject to the reporting requirements of the Exchange Act of 1934, Manhattan did not request and Weinberg & Company, P.A. did not provide, a letter addressed to the Securities and Exchange Commission stating whether Weinberg & Company, P.A. agreed with the above statements. On January 23, 2003, Manhattan engaged J.H. Cohn as its independent public accountants for the fiscal year ending December 31, 2002 and to audit its financial statements. During the period from August 6, 2001 (date of inception) through December 31, 2002 and the subsequent interim period preceding the engagement of J.H. Cohn, Manhattan did not consult J.H. Cohn on any matter requiring disclosure under Item 304(a)(2) of Regulation S-B promulgated by the SEC. The selection of J.H. Cohn was approved by Manhattan's board of directors. 46

INDEX TO FINANCIAL STATEMENTS Audited Consolidated Financial Statements of Manhattan Research Development, Inc. (formerly Manhattan Pharmaceuticals, Inc.): Report of J. H. Cohn LLP................................................................................. F-2 Report of Weinberg & Company, P.A........................................................................ F-3 Balance Sheets as of December 31, 2002 and 2001.......................................................... F-4 Statements of Operations for the Year Ended December 31, 2002 and Periods from August 6, 2001 (Date of Inception) to December 31, 2001 and 2002.............................................................. F-5 Statement of Changes in Stockholders' Equity (Deficiency) for the Year Ended December 31, 2002 and Periods from August 6, 2001 (Date of Inception) to December 31, 2001 and 2002...................... F-6 Statements of Cash Flows for the Year Ended December 31, 2002 and Periods from August 6, 2001 (Date of Inception) to December 31, 2001 and 2002........................................................... F-7 Notes to Financial Statements......................................................................... F-8 Unaudited Interim Financial Statements of Manhattan Pharmaceuticals, Inc.: Condensed Consolidated Balance Sheets as of September 30, 2003 and December 31, 2002.................. F-13 Condensed Consolidated Statements of Operations for the Three and Nine Months Ending September 30, 2003 and September 30, 2002 and from August 6, 2001 (inception) to September 30, 2003................... F-14 Condensed Consolidated Statement of Stockholders' Equity (Deficiency) as of September 30, 2003........ F-15 Condensed Consolidated Statements of Cash Flows for the Three and Nine Months Ending September 30, 2003, and from August 6, 2001 (inception) through September 30, 2003............................... F-16 Notes to Condensed Consolidated Financial Statements.................................................. F-17 F-1

REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS To the Board of Directors Manhattan Research Development, Inc. We have audited the accompanying balance sheet of MANHATTAN RESEARCH DEVELOPMENT, INC. (formerly Manhattan Pharmaceuticals, Inc.) (a development stage company) as of December 31, 2002, and the related statements of operations, changes in stockholders' equity (deficiency) and cash flows for the year then ended and for the period from January 1, 2002 to December 31, 2002 as related to the period from August 6, 2001 (date of inception) to December 31, 2002. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audit. We conducted our audit in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion. In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of Manhattan Research Development, Inc. as of December 31, 2002, and its results of operations and cash flows for the year then ended and for the period from January 1, 2002 to December 31, 2002 as related to the period from August 6, 2001 (date of inception) to December 31, 2002, in conformity with accounting principles generally accepted in the United States of America. The financial statements referred to above have been prepared assuming that the Company will continue as a going concern. As discussed in Notes 1 and 2 to the financial statements, the Company, which has suffered recurring losses from operations, completed a merger on February 21, 2003 with Manhattan Pharmaceuticals, Inc., which has also suffered recurring losses from operations. The combined Company will have limited resources. Such matters raise substantial doubt about the ability of the Company to continue as a going concern. Management's plans in regard to these matters are also described in Note 1. The financial statements referred to above do not include any adjustments that might result from the outcome of this uncertainty. /s/ J.H. Cohn LLP Roseland, New Jersey February 14, 2003, except for Notes 1, 2 and 10 which are as of February 21, 2003 F-2

INDEPENDENT AUDITORS' REPORT To the Board of Directors of: Manhattan Pharmaceuticals, Inc. (A development stage company) We have audited the accompanying balance sheet of Manhattan Pharmaceuticals, Inc. (a development stage company) as of December 31, 2001 and the related statements of operations, changes in stockholders' deficiency and cash flows for the period from August 6, 2001 (inception) to December 31, 2001. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audit in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion. In our opinion, the financial statements referred to above present fairly in all material respects, the financial position of Manhattan Pharmaceuticals, Inc. as of December 31, 2001, and the results of its operations and its cash flows for the period from August 6, 2001 (inception) to December 31, 2001, in conformity with accounting principles generally accepted in the United States of America. The accompanying financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 9 to the financial statements, the Company has a net loss from operations of $56,796 since inception, a negative cash flow from operating activities of $27,500 since inception, a working capital deficiency of $56,796 and a stockholders' deficiency of $56,796. These matters raise substantial doubt about the Company's ability to continue as a going concern. Management's plan in regards to these matters is also described in Note 9. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. /s/ WEINBERG & COMPANY, P.A. WEINBERG & COMPANY, P.A. Boca Raton, Florida November 1, 2002 F-3

MANHATTAN RESEARCH DEVELOPMENT, INC. (A Development Stage Company) BALANCE SHEETS DECEMBER 31, 2002 AND 2001 ASSETS 2002 2001 ----------- ----------- Current assets - cash $ 1,721,123 $ -- =========== =========== LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIENCY) Current liabilities: Accounts payable $ 164,899 Accrued expenses 15,973 $ 29,296 Note payable to bank 600,000 Notes payable to stockholder 206,000 27,500 Due affiliate 96,328 ----------- ----------- Total liabilities 1,083,200 56,796 ----------- ----------- Commitments Stockholders' equity (deficiency): Common stock, $.001 par value; 10,000,000 shares authorized; 6,197,250 and 4,000,000 shares issued and outstanding 6,197 4,000 Additional paid-in capital 1,763,710 Unearned consulting costs (37,868) Deficit accumulated during the development stage (1,094,116) (56,796) Subscription receivable (4,000) ----------- ----------- Total stockholders' equity (deficiency) 637,923 (56,796) ----------- ----------- Totals $ 1,721,123 $ -- =========== =========== See Notes to Financial Statements. F-4

MANHATTAN RESEARCH DEVELOPMENT, INC. (A Development Stage Company) STATEMENTS OF OPERATIONS YEAR ENDED DECEMBER 31, 2002 AND PERIODS FROM AUGUST 6, 2001 (DATE OF INCEPTION) TO DECEMBER 31, 2001 AND 2002 Year Ended August 6, 2001 December 31, to December 31, 2002 2001 2002 ----------- ----------- ----------- Revenue $ -- $ -- $ -- ----------- ----------- ----------- Operating expenses: Selling, general and administrative expenses 348,021 1,560 349,581 Research and development expenses 670,161 55,236 725,397 ----------- ----------- ----------- Totals 1,018,182 52,796 1,074,978 ----------- ----------- ----------- Loss from operations (1,018,182) (56,796) (1,074,978) Interest expense 19,138 19,138 ----------- ----------- ----------- Net loss $(1,037,320) $ (56,796) $(1,094,116) =========== =========== =========== See Notes to Financial Statements. F-5

MANHATTAN RESEARCH DEVELOPMENT, INC. (A Development Stage Company) STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIENCY) YEAR ENDED DECEMBER 31, 2002 AND PERIODS FROM AUGUST 6, 2001 (DATE OF INCEPTION) TO DECEMBER 31, 2001 AND 2002 Common Stock Additional Unearned ------------------- Paid-in Consulting Shares Amount Capital Costs ------ ------ ------- ----- Stock issued at $.001 per share for subscription receivable 4,000,000 $4,000 Net loss ----------- ------ ---------- -------- Balance, December 31, 2001 4,000,000 4,000 Proceeds from subscription receivable Stock issued at $.001 per share for license rights 1,000,000 1,000 Stock options issued for consulting services $ 60,589 $(60,589) Amortization of unearned consulting costs 22,721 Sales of common stock at $1.60 per share through private placement, net of expenses of $211,281 1,197,250 1,197 1,703,121 Net loss ----------- ------ ---------- -------- Balance, December 31, 2002 6,197,250 $6,197 $1,763,710 $(37,868) =========== ====== ========== ======== During the Develop- Subscription ment Receivable Stage Total ---------- ----------- ----------- Stock issued at $.001 per share for subscription receivable $(4,000) Net loss $ (56,796) $ (56,796) ------- ----------- ----------- Balance, December 31, 2001 (4,000) (56,796) (56,796) Proceeds from subscription receivable 4,000 4,000 Stock issued at $.001 per share for license rights 1,000 Stock options issued for consulting services Amortization of unearned consulting costs 22,721 Sales of common stock at $1.60 per share through private placement, net of expenses of $211,281 1,704,318 Net loss (1,037,320) (1,037,320) ------- ----------- ----------- Balance, December 31, 2002 $ -- $(1,094,116) $ 637,923 ======= =========== =========== See Notes to Financial Statements. F-6

MANHATTAN RESEARCH DEVELOPMENT, INC. (A Development Stage Company) STATEMENTS OF CASH FLOWS YEAR ENDED DECEMBER 31, 2002 AND PERIODS FROM AUGUST 6, 2001 (DATE OF INCEPTION) TO DECEMBER 31, 2001 AND 2002 August 6, 2001 to December 31, Year Ended ---------------------------- December 31, 2002 2001 2002 ----------------- ----------- ----------- Operating activities: Net loss $(1,037,320) $ (56,796) $(1,094,116) Adjustments to reconcile net loss to net cash used in operating activities: Common stock issued for license rights 1,000 1,000 Amortization of unearned consulting services 22,721 22,721 Changes in operating assets and liabilities: Accounts payable 164,899 164,899 Accrued expenses (13,323) 29,296 15,973 Due affiliate 96,328 96,328 ----------- ----------- ----------- Net cash used in operating activities (765,695) (27,500) (793,195) ----------- ----------- ----------- Financing activities: Proceeds from issuance of notes payable to stockholders 206,000 27,500 233,500 Repayments of notes payable to stockholders (27,500) (27,500) Proceeds from issuance of note payable to bank 600,000 600,000 Proceeds from subscription receivable 4,000 4,000 Proceeds from sale of common stock, net 1,704,318 1,704,318 ----------- ----------- ----------- Net cash provided by financing activities 2,486,818 27,500 2,514,318 ----------- ----------- ----------- Net increase in cash 1,721,123 -- 1,721,123 Cash, beginning of period -- -- -- ----------- ----------- ----------- Cash, end of period $ 1,721,123 $ -- $ 1,721,123 =========== =========== =========== Supplemental disclosure of cash flow data: Interest paid $ 15,665 $ 15,665 =========== =========== Supplemental schedule of noncash investing and financing activities: Stock options issued for consulting services $ 60,589 $ 60,589 =========== =========== See Notes to Financial Statements. F-7

MANHATTAN RESEARCH DEVELOPMENT, INC. (A DEVELOPMENT STAGE COMPANY) NOTES TO FINANCIAL STATEMENTS NOTE 1 - BUSINESS: Manhattan Research Development, Inc. (the "Company" or "Manhattan Research") was incorporated on August 6, 2001 under the laws of the State of Delaware. The Company's name was changed from Manhattan Pharmaceuticals, Inc. to Manhattan Research Development, Inc. on February 21, 2003. The Company is a development stage biopharmaceutical company that holds an exclusive world-wide, royalty-free license to certain intellectual property (the "Property") owned by Oleoyl-Estrone Developments, SL ("OED") of Barcelona, Spain (the "University"). Oleoyl-Estrone is an orally administered small molecule that has been shown to cause significant weight loss in preclinical animal studies regardless of dietary modifications. On February 21, 2003, Manhattan Pharmaceuticals, Inc. (formerly known as "Atlantic Technology Ventures, Inc.") ("Manhattan Pharmaceuticals") completed a reverse acquisition of the Company. Manhattan Pharmaceuticals is a publicly-held company. The Company was privately-held until the merger. The merger was effected pursuant to an Agreement and Plan of Merger dated December 17, 2002 (the "Merger Agreement") by and among the Company, Manhattan Pharmaceuticals and Manhattan Pharmaceuticals Acquisition Corp. ("MPAC") which was a wholly-owned subsidiary of Manhattan Pharmaceuticals. In accordance with the terms of the Merger Agreement, MPAC merged with and into the Company, with the Company remaining as the surviving corporation and a wholly-owned subsidiary of Manhattan Pharmaceuticals. Pursuant to the Merger Agreement, upon the effective time of the merger, the outstanding shares of common stock of the Company automatically converted into an aggregate of 93,449,584 shares of common stock of Manhattan Pharmaceuticals, which represented 80% of the outstanding voting stock of Manhattan Pharmaceuticals after giving effect to the merger. In addition, immediately prior to the merger the Company had outstanding options and warrants to purchase an aggregate of 864,280 shares of its common stock, which, in accordance with the terms of the merger, automatically converted into options and warrants to purchase an aggregate of 10,984,719 shares of the common stock of Manhattan Pharmaceuticals. Since the stockholders of the Company received the majority of the voting shares of Manhattan Pharmaceuticals, the merger will be accounted for as a reverse acquisition whereby the Company will be the accounting acquirer (legal acquiree) and Manhattan Pharmaceuticals will be the accounting acquiree (legal acquirer) as further explained in Note 10. Manhattan Pharmaceuticals is engaged in the business of developing and commercializing early-stage technologies, particularly biomedical and pharmaceutical technologies. During 2002, Manhattan Pharmaceuticals had rights to technologies relating to three different drug candidates with potential application in the areas of cataract, anti-inflammatory and anti-microbial treatments. However, management of the combined Company intends to initially focus after the merger on the development and commercialization of the technologies owned or licensed by the Company. NOTE 2 - LIQUIDITY: The Company reported a net loss of $1,037,320 for the year ended December 31, 2002. The net loss from August 6, 2001 (date of inception) to December 31, 2002 amounted to $1,094,116. As discussed above and in Note 10, the Company and Manhattan Pharmaceuticals completed their reverse acquisition on February 21, 2003. Manhattan Pharmaceuticals has also suffered recurring losses from its operations. Based on the resources available to the Company and Manhattan Pharmaceuticals at December 31, 2002, management believes that the combined Company will continue to incur net losses through at least December 31, 2003 and will need additional equity or debt financing or will need to generate revenues through the licensing of its products or by entering into strategic alliances to be able to sustain its operations until it can achieve profitability, if ever. These matters raise substantial doubt about the Company's ability to continue as a going concern. F-8

MANHATTAN RESEARCH DEVELOPMENT, INC. (A DEVELOPMENT STAGE COMPANY) NOTES TO FINANCIAL STATEMENTS The combined Company's ability to continue its operations will depend on its ability to raise additional funds through various potential sources such as equity and debt financing, collaborative agreements and strategic alliances, and its ability to realize the full potential of its technology in development. Additional funds are currently not available on acceptable terms and may not become available. There can be no assurance that any additional funding that the combined Company obtains will be sufficient to meet the combined Company's needs in the short- and long-term. Through December 31, 2002, a significant portion of the financing obtained by the Company and Manhattan Pharmaceuticals has been through private placements of common stock, preferred stock and warrants, the issuance of common stock for stock options and warrants exercised and debt financing. Until and unless the combined Company's operations generate significant revenues, the combined Company will attempt to continue to fund operations from cash on hand and through the sources of capital previously described. From November 2002 through February 20, 2003, the combined Company has raised $2,747,600 from financing activities. NOTE 3 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Use of estimates: The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect certain reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting period. Actual results could differ from those estimates. Research and development expenses: Research and development expenses are expensed as incurred. Income taxes: The Company accounts for income taxes pursuant to the asset and liability method which requires deferred income tax assets and liabilities to be computed for temporary differences between the financial statement and tax bases of assets and liabilities that will result in taxable or deductible amounts in the future based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. The income tax provision is the tax payable or refundable for the period plus or minus the change during the period in deferred tax assets and liabilities. Stock-based compensation: Options, warrants and stock awards issued to nonemployees and consultants are recorded at their fair value as determined in accordance with Statement of Financial Accounting Standards No. 123, "Accounting for Stock-Based Compensation," and EITF No. 96-18, "Accounting for Equity Instruments That are Issued to Other Than Employees for Acquiring, or in Conjunction with Selling, Goods or Services" and recognized as expense over the related vesting period. F-9

MANHATTAN RESEARCH DEVELOPMENT, INC. (A DEVELOPMENT STAGE COMPANY) NOTES TO FINANCIAL STATEMENTS NOTE 4 - NOTE PAYABLE TO BANK: At December 31, 2002, the Company had a $600,000 note payable to a bank with an annual interest rate of 3.23% due on January 5, 2003. The note is collateralized by a stockholder's personal investment account of $600,000. In January 2003, the Company made a partial repayment of principal in the amount of $400,000. The remaining principal balance was repaid on March 5, 2003 without any penalty. NOTE 5 - NOTES PAYABLE TO STOCKHOLDER: At December 31, 2002 and 2001, the Company had issued unsecured notes payable totaling $206,000 and $27,500, respectively, to a stockholder. The notes bear interest at 5% and became due on demand when the Company received $1,000,000 from the sale of equity securities. NOTE 6 - DUE AFFILIATE: On July 1, 2002, the Company entered into an office services agreement (the "Services Agreement") with a company owned by a principal stockholder of the Company. Pursuant to the Services Agreement, which expires on July 1, 2003, the Company pays $15,000 per month for the use of office space and management services. For the year ended December 31, 2002, the Company was charged $90,000, which is included in selling, general and administrative expenses. NOTE 7 - LICENSE AND CONSULTING AGREEMENTS: On February 15, 2002, the Company entered into a License Agreement (the "License Agreement") with OED. Under the terms of the License Agreement, OED granted to the Company a world-wide license to make, use, lease and sell the products incorporating the Property (see Note 1). OED also granted to the Company the right to sublicense to third parties the Property or aspects of the Property with the prior written consent of OED. OED retains an irrevocable, nonexclusive, royalty-free right to use the Property solely for its internal, noncommercial use. The License Agreement shall terminate automatically upon the date of the last to expire patent contained in the Property or upon the Company's bankruptcy. OED may terminate the License Agreement in the event of a material breach by the Company that is not cured within the notice period. The Company may terminate the License Agreement for any reason upon 60 days notice. Under the License Agreement, the Company agreed to pay to OED certain licensing fees which are being expensed as they are incurred. Through December 31, 2002, the Company paid $175,000 in licensing fees which is included in research and development expense. In addition, pursuant to the License Agreement, the Company issued 1,000,000 shares of its common stock to OED. The Company valued these shares at their then estimated fair value of $1,000. In connection with the License Agreement, the Company has agreed to future milestone payments to OED as follows: (i) $250,000 upon the treatment of the first patient in a Phase I clinical trial under a Company-sponsored investigational new drug application ("IND"); (ii) $250,000 upon the treatment of the first patient in a Phase II clinical trial under a Company-sponsored IND; (iii) $750,000 upon the first successful completion of a Company-sponsored Phase II clinical trial under a Company-sponsored IND; (iv) $2,000,000 upon the first successful completion of a Company-sponsored Phase III clinical trial under a Company sponsored IND; and (v) $6,000,000 upon the first final approval of the first new drug application for the first licensed product by the United States Food and Drug Administration. F-10

MANHATTAN RESEARCH DEVELOPMENT, INC. (A DEVELOPMENT STAGE COMPANY) NOTES TO FINANCIAL STATEMENTS In addition to the License Agreement, the Company entered into a consulting agreement with OED. The agreement became effective in February 2002, at a fee of $6,250 per month, and will terminate when the License Agreement terminates. The fees associated with the consulting agreement are expensed as incurred. OED agreed to serve as a member of the Company's Scientific Advisory Board and to render consultative and advisory services to the Company. Such services include research, development and clinical testing of the Company's technology as well as the reporting of the findings of such tests, assistance in the filing of patent applications and oversight and direction of efforts in regards to personnel for clinical development. NOTE 8 - INCOME TAXES: The estimated tax effects of significant temporary differences and carryforwards that gave rise to net deferred income tax assets as of December 31, 2002 and 2001 are as follows: 2002 2001 --------- --------- Net deferred tax assets: Net operating loss carryforwards $ 417,000 $ 22,000 Research and experimentation credit carryforwards 26,000 Stock options granted to consultants 24,000 --------- --------- 467,000 22,000 Less valuation allowance (467,000) (22,000) --------- --------- Net deferred tax assets $ -- $ -- ========= ========= Since realization of the benefits from the temporary differences is not considered by management to be more likely than not, a full valuation allowance has been provided to reduce deferred tax assets to zero. The valuation allowance increased by $445,000 and $22,000 during the year ended December 31, 2002 and the period from August 6, 2001 (date of inception) to December 31, 2001, respectively. At December 31, 2002, the Company has net operating loss carryforwards of approximately $1,044,000 for Federal and state tax purposes which expire through 2022. At December 31, 2002, the Company also has research and experimentation credit carryforwards of approximately $26,000 for Federal and state tax purposes which expire through 2022 for Federal purposes and until fully utilized for state purposes. For Federal and state tax purposes, the Company's net operating loss and tax credit carryforwards may be subject to certain limitations on annual utilization attributable to equity transactions that result in changes in ownership, as defined by the Tax Reform Act of 1986. NOTE 9 - STOCKHOLDERS' EQUITY (DEFICIENCY): The Company issued 4,000,000 shares of common stock to 38 investors during December 2001 for subscriptions receivable of $4,000 or $.001 per share. During 2002, the Company received the $4,000. F-11

In August 2002, the Company entered into one-year agreements with four consultants and issued a total of 40,000 options to these consultants to purchase 40,000 shares of the Company's common stock at an exercise price of $.01 per share expiring in August 2007. The Company valued these options at $60,589 and is amortizing the expense through August 2003. Therefore, the Company has expensed $22,721 in 2002 and has deferred $37,868. During 2002, no options were exercised. During 2002, the Company commenced a private placement and sold 1,197,250 shares of common stock at $1.60 per share and received proceeds of $1,704,318, net of expenses of $211,181. Each investor received warrants equal to 10% of the number of shares of common stock purchased and, accordingly, the Company issued 119,275 warrants in 2002 in connection with the private placement. Each warrant has an exercise price of $1.60 per share and expires in 2007. During January and February 2003, the Company sold an additional 520,000 shares of common stock at $1.60 per share and 52,000 warrants through the private placement and received net proceeds of approximately $832,000. In addition, in connection with the private placement, the Company issued to Joseph Stevens & Co., Inc., a NASD-member broker-dealer, warrants to purchase 652,555 shares of the Company's common stock that are exercisable at $1.60 per share and expire in 2008. NOTE 10- MERGER: Pursuant to the Merger Agreement (see Note 1), upon the effective time of the merger, the outstanding shares of common stock of the Company automatically converted into an aggregate of 93,449,584 shares of common stock of Manhattan Pharmaceuticals, which represented 80% of the outstanding voting stock of Manhattan Pharmaceuticals after giving effect to the merger. In addition, immediately prior to the merger the Company had outstanding options and warrants to purchase an aggregate of 864,280 shares of its common stock, which, in accordance with the terms of the merger, automatically converted into options and warrants to purchase an aggregate of 10,984,719 shares of the common stock of Manhattan Pharmaceuticals. Since the stockholders of the Company received the majority of the voting shares of Manhattan Pharmaceuticals, the merger will be accounted for as a reverse acquisition whereby the Company will be the accounting acquirer (legal acquiree) and Manhattan Pharmaceuticals will be the accounting acquiree (legal acquirer). Based on the five day average price of the common stock of Manhattan Pharmaceuticals of $0.10 per share as of February 21, 2003, the Company's purchase price for the acquisition of Manhattan Pharmaceuticals approximates $2,336,000, which represents 20 percent of the market value of the combined Company's post-merger total outstanding shares of 116,811,980. Based on the preliminary information currently available, the Company expects to recognize patents and licenses for substantially all of the purchase price. Upon completion of formal purchase price allocation there may be a decrease in the amount assigned to intangible assets and a corresponding increase in in-process research and development. F-12

MANHATTAN PHARMACEUTICALS, INC. AND SUBSIDIARIES (A Development Stage Company) Condensed Consolidated Balance Sheets (Unaudited) SEPTEMBER 30, DECEMBER 31, ASSETS 2003 2002 ----------- ----------- Current assets: Cash and cash equivalents $ 102,114 $ 1,721,123 Marketable equity securities, available for sale, at market 319,320 Prepaid expenses 27,009 -- ----------- ----------- Total current assets 448,443 1,721,123 Property and equipment, net 10,004 -- Deposits 19,938 -- Deferred costs related to private placement 50,754 -- ----------- ----------- Total assets $ 529,139 $ 1,721,123 =========== =========== LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIENCY) Current liabilities: Accounts payable $ 760,524 $ 164,899 Accrued expenses 435,069 15,973 Note payable to bank -- 600,000 Notes payable to stockholder 70,000 206,000 Due affiliate -- 96,328 ----------- ----------- Total liabilities 1,265,593 1,083,200 ----------- ----------- Commitments and Contingencies Stockholders' equity (deficiency): Common stock, $.001 par value. Authorized 150,000,000 shares; 23,362,396 and 15,753,008 shares issued and outstanding at September 30, 2003 and December 31, 2002, respectively 23,362 15,753 Additional paid-in capital 4,826,177 1,754,154 Deficit accumulated during development stage (5,545,406) (1,094,116) Accumulated other comprehensive loss (40,587) -- Unearned consulting costs -- (37,868) ----------- ----------- Total stockholders' equity (deficiency) (736,454) 637,923 ----------- ----------- Total liabilities and stockholders' equity (deficiency) $ 529,139 $ 1,721,123 =========== =========== See accompanying notes to unaudited condensed consolidated financial statements. F-13

MANHATTAN PHARMACEUTICALS, INC. AND SUBSIDIARIES (A Development Stage Company) Condensed Consolidated Statements of Operations (Unaudited) CUMULATIVE PERIOD FROM AUGUST 6, 2001 THREE MONTHS NINE MONTHS (INCEPTION) TO ENDED SEPTEMBER 30, ENDED SEPTEMBER 30, SEPTEMBER 30, ---------------------------- ---------------------------- ------------ 2003 2002 2003 2002 2003 ------------ ------------ ------------ ------------ ------------ Revenue $ -- $ -- $ -- $ -- $ -- ------------ ------------ ------------ ------------ ------------ Costs and expenses: Research and development 377,820 172,719 734,351 624,971 1,459,748 General and administrative 412,730 148,144 1,255,446 198,485 1,605,027 Impairment of intangible assets 1,248,230 -- 1,248,230 -- 1,248,230 ------------ ------------ ------------ ------------ ------------ Total operating expenses 2,038,780 320,863 3,238,027 823,456 4,313,005 ------------ ------------ ------------ ------------ ------------ Operating loss (2,038,780) (320,863) (3,238,027) (823,456) (4,313,005) ------------ ------------ ------------ ------------ ------------ Other (income) expense: Interest and other income (564) -- (4,704) -- (4,704) Interest expense 933 6,299 4,089 12,113 23,227 Loss on disposition of intangible assets 1,213,878 -- 1,213,878 -- 1,213,878 ------------ ------------ ------------ ------------ ------------ Total other (income) expense 1,214,247 6,299 1,213,263 12,113 1,232,401 ------------ ------------ ------------ ------------ ------------ Net loss $ (3,253,027) $ (327,162) $ (4,451,290) $ (835,569) $ (5,545,406) ============ ============ ============ ============ ============ Net loss per common share: Basic and diluted $ (0.14) $ (0.03) $ (0.20) $ (0.07) ============ ============ ============ ============ Weighted average shares of common stock outstanding: Basic and diluted 23,362,396 12,709,676 22,061,978 12,281,365 ============ ============ ============ ============ See accompanying notes to unaudited condensed consolidated financial statements. F-14

MANHATTAN PHARMACEUTICALS, INC. AND SUBSIDIARIES (A Development Stage Company) Condensed Consolidated Statement of Stockholders' Equity (Deficiency) (Unaudited) DEFICIT ACCUMULATED COMMON STOCK ADDITIONAL DURING THE --------------------------- PAID-IN DEVELOPMENT SHARES AMOUNT CAPITAL STAGE ----------- ----------- ----------- ----------- Balance at January 1, 2003, as adjusted for a 1-for-5 stock combination 15,753,008 $ 15,753 $ 1,754,154 $(1,094,116) Common stock issued, net of expenses 1,321,806 1,322 742,369 -- Effect of reverse acquisition 6,287,582 6,287 2,329,954 -- Amortization of unearned consulting costs -- -- -- -- Unrealized loss on marketable equity securities -- -- -- -- Payment for fractional shares for stock combination -- -- (300) -- Net loss -- -- -- (4,451,290) ----------- ----------- ----------- ----------- Balance at September 30, 2003 23,362,396 $ 23,362 $ 4,826,177 $(5,545,406) =========== =========== =========== =========== TOTAL ACCUMULATED STOCK- OTHER UNEARNED HOLDERS' COMPREHENSIVE CONSULTING EQUITY LOSS COSTS (DEFICIENCY) ----------- ----------- ----------- Balance at January 1, 2003, as adjusted for a 1-for-5 stock combination -- $ (37,868) $ 637,923 Common stock issued, net of expenses -- -- 743,691 Effect of reverse acquisition -- -- 2,336,241 Amortization of unearned consulting costs -- 37,868 37,868 Unrealized loss on marketable equity securities (40,587) -- (40,587) Payment for fractional shares for stock combination -- -- (300) Net loss -- -- (4,451,290) ----------- ----------- ----------- Balance at September 30, 2003 (40,587) $ -- $ (736,454) =========== =========== =========== See accompanying notes to unaudited condensed consolidated financial statements. F-15

MANHATTAN PHARMACEUTICALS, INC. AND SUBSIDIARIES (A Development Stage Company) Condensed Consolidated Statements of Cash Flows (Unaudited) CUMULATIVE PERIOD FROM AUGUST 1, 2001 NINE MONTHS (INCEPTION) TO ENDED SEPTEMBERS 30, SEPTEMBER 30, ---------------------------- ----------- 2003 2002 2003 ----------- ----------- ----------- Cash flows from operating activities: Net loss $(4,451,290) $ (835,569) $(5,545,406) Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Common stock issued for license rights -- -- 1,000 Amortization of unearned consulting costs 37,868 16,147 60,589 Amortization of intangible assets 145,162 -- 145,162 Depreciation 4,233 -- 4,233 Loss on impairment of intangible assets 1,248,230 -- 1,248,230 Loss on disposition of intangible assets 1,213,878 -- 1,213,878 Changes in operating assets and liabilities, net of acquisition: Decrease in prepaid expenses 11,298 -- 11,298 Increase in accounts payable 271,889 161,846 436,788 (Decrease) increase in accrued expenses (121,225) 14,400 (105,252) (Decrease) increase in due affiliate (96,328) 51,315 -- Increase in interest payable -- 1,346 -- ----------- ----------- ----------- Net cash used in operating activities (1,736,285) (590,515) (2,529,480) ----------- ----------- ----------- Cash flows from investing activities: Purchase of property and equipment (6,554) -- (6,554) Cash paid in connection with acquisition (32,808) -- (32,808) Proceeds from sale of license 200,001 -- 200,001 ----------- ----------- ----------- Net cash provided by investing activities 160,639 -- 160,639 ----------- ----------- ----------- Cash flows from financing activities: Proceeds from issuances of notes payable to stockholders -- 2,500 233,500 Repayments of notes payable to stockholders (136,000) -- (163,500) Proceeds from issuance of note payable to bank -- 600,000 600,000 Repayment of note payable to bank (600,000) -- (600,000) Proceeds from subscriptions receivable -- -- 4,000 Payment for fractional shares for stock combination 300 -- 300 Proceeds from sale of common stock, net 743,091 -- 2,447,409 Increase in deferred costs related to private placement (50,754) (8,706) (50,754) ----------- ----------- ----------- Net cash provided by (used in) financing activities (43,363) 593,794 2,470,955 ----------- ----------- ----------- Net increase (decrease) in cash and cash equivalents (1,619,009) 3,279 102,114 Cash and cash equivalents at beginning of period 1,721,123 -- -- ----------- ----------- ----------- Cash and cash equivalents at end of period $ 102,114 $ 3,279 $ 102,114 =========== =========== =========== Supplemental disclosure of cash flow information: Interest paid $ 502 $ 10,676 $ 26,934 =========== =========== =========== Supplemental disclosure of noncash investing and financing activities: Stock options issued for consulting services $ -- -- $ 60,589 Issuance of common stock for acquisition 2,336,242 -- 2,336,242 Marketable equity securities received in connection with sale of license 359,907 -- 359,907 =========== =========== =========== See accompanying notes to unaudited condensed consolidated financial statements. F-16

MANHATTAN PHARMACEUTICALS, INC. AND SUBSIDIARIES (A DEVELOPMENT STAGE COMPANY) NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) SEPTEMBER 30, 2003 (1) BASIS OF PRESENTATION The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information. Accordingly, the financial statements do not include all information and footnotes required by accounting principles generally accepted in the United States of America for complete annual financial statements. In the opinion of management, the accompanying condensed consolidated financial statements reflect all adjustments, consisting of only normal recurring adjustments, considered necessary for a fair presentation. Interim operating results are not necessarily indicative of results that may be expected for the year ending December 31, 2003 or for any subsequent period. These consolidated financial statements should be read in conjunction with the Annual Report on Form 10-KSB of Manhattan Pharmaceuticals, Inc. and its subsidiaries ("Manhattan" or the "Company") as of and for the year ended December 31, 2002 and the Form 8-K/A of Manhattan Pharmaceuticals, Inc. filed on May 9, 2003 containing the financial statements of Manhattan Research Development, Inc. (2) LIQUIDITY The Company has reported a net loss of $1,037,320 for the year ended December 31, 2002 and a net loss of $4,451,290 for the nine months ended September 30, 2003. The net loss from date of inception, August 6, 2001, to September 30, 2003 amounts to $5,545,406. As discussed in Note 6, on February 21, 2003 the Company completed a reverse acquisition of privately held Manhattan Research Development, Inc. Management believes that the combined Company will continue to incur net losses through at least September 30, 2004. Based on the resources of the combined Company available at September 30, 2003, management believes that the combined Company will need additional equity or debt financing or will need to generate revenues through licensing its products or entering into strategic alliances to be able to sustain its operations until it can achieve profitability, if ever. The combined Company's continued operations will depend on its ability to raise additional funds through various potential sources such as equity and debt financing, collaborative agreements, strategic alliances and its ability to realize the full potential of its technology in development. Additional funds may not become available on acceptable terms, and there can be no assurance that any additional funding that the combined Company does obtain will be sufficient to meet the combined Company's needs in the short and long term. Through September 30, 2003, a significant portion of the Company's financing has been through private placements of common stock and warrants and debt financing. Until and unless the combined Company's operations generate significant revenues, the combined Company will attempt to continue to fund operations from cash on hand and through the sources of capital previously described. As described in Note 10, on November 7, 2003, the Company completed a private placement of 1,000,000 shares of its newly-designated Series A Convertible Preferred Stock at a price of $10 per share, resulting in gross proceeds to the Company of $10,000,000. Each share of Series A Convertible Preferred Stock is convertible at the holder's election into shares of the company's common stock at a conversion price of $1.10 per share. The conversion price of the Series A Convertible Preferred Stock was less than the market value of the Company's common stock on November 7, 2003. Accordingly, the Company will record a charge for the beneficial conversion feature associated with the convertible preferred stock. Such charge is anticipated to approximate $418,000. The Company's common stock is quoted on the Over-the-Counter Bulletin Board (the "OTCBB") under the ticker symbol "MHTT.OB." This has an adverse effect on the liquidity of our common stock, not only in terms of the number of shares that can be bought and sold at a given price, but also through delays in the timing of transactions and reduction in security analysts' and the media's coverage of the Company. This may result in lower prices for shares of the Company's common stock than might otherwise be obtained and could also result in a larger spread between the bid and asked prices for the common stock. F-17

MANHATTAN PHARMACEUTICALS, INC. AND SUBSIDIARIES (A DEVELOPMENT STAGE COMPANY) NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) SEPTEMBER 30, 2003 On July 25, 2003, the Board of Directors adopted a resolution authorizing an amendment to the certificate of incorporation providing for a 1-for-5 combination. A resolution approving the 1-for-5 combination was thereafter consented to in writing by holders of a majority of the Company's outstanding common stock. The proposed 1-for-5 combination became effective on September 25, 2003. Accordingly, all share and per share information in these unaudited condensed consolidated financial statements has been restated to retroactively reflect the 1-for-5 combination. (3) COMPUTATION OF NET LOSS PER COMMON SHARE Basic net loss per common share is calculated by dividing net loss applicable to common shares by the weighted-average number of common shares outstanding for the period. Diluted net loss per common share equals basic net loss per common share, since common stock potentially issuable from the exercise or conversion of stock options, stock warrants, stock subscriptions and convertible preferred stock would have an anti dilutive effect because the Company incurred a net loss during each period presented. The potentially dilutive shares of common stock from stock options, stock warrants, stock subscriptions, and convertible preferred stock, which have not been included in the diluted calculations since their effect is antidilutive, was 4,111,935 as of September 30, 2003. (4) ISSUANCE OF STOCK, STOCK OPTIONS AND WARRANTS On February 24, 2003, the Company granted employees options to purchase an aggregate of 876,090 shares of common stock outside of the Company's 1995 Stock Option Plan. An aggregate of 584,060 shares subject to these options vest on the first anniversary of the grant date and the remaining 292,030 shares subject to these options vest in two equal installments on each of the first and second anniversaries of the grant date, provided the optionee continues in service. The options were granted at the market price on the day of issuance and are exercisable for a period of ten years regardless of whether the grantee continues to be employed by the Company. The Company uses the intrinsic value method of accounting for stock options pursuant to the provisions of APB Opinion No. 25. Had compensation costs been determined in accordance with the fair value method prescribed by SFAS No. 123 for all options issued to employees, the Company's net loss applicable to common shares and net loss per common share (basic and diluted) for plan options would have been increased to the pro forma amounts indicated below. There were no options granted during the third quarter of 2003. There were no options granted or outstanding in the 2002 periods. F-18

THREE NINE MONTHS ENDED MONTHS ENDED SEPTEMBER 30, SEPTEMBER 30, 2003 2003 ----------- ----------- Net loss, as reported $(3,253,027) $(4,451,290) Deduct: Total stock-based employee compensation expense determined under fair value method (74,763) (228,210) ----------- ----------- Net loss, pro forma $(3,327,790) $(4,679,500) =========== =========== Net loss per common share - basic As reported $ (0.14) $ (0.20) Pro forma (0.14) (0.21) (5) PRIVATE PLACEMENT OF COMMON SHARES During 2002, the Company's subsidiary, Manhattan Research Development, Inc. (Manhattan Research) commenced a private placement and sold 239,450 shares of common stock at $8 ($0.63 post merger) per share and received proceeds of $1,704,318, net of expenses of $211,281. These shares converted into 3,043,332 shares of the Company's common stock when the Company completed the reverse acquisition of Manhattan Research as described below. In addition, each investor received warrants equal to 10% of the number of shares of common stock purchased and, accordingly, Manhattan Research issued warrants to purchase 23,945 shares of common stock in 2002 in connection with the private placement. Upon the merger, these converted into warrants to purchase 304,333 shares of the Company's common stock. Each warrant had an exercise price of $8 per share, which post merger converted to approximately $0.63. These warrants expire in 2007. During January and February 2003, Manhattan Research sold an additional 104,000 shares of common stock at $8 ($0.63, post merger) per share and warrants to purchase 10,400 shares of common stock exercisable at $8 ($0.63 post merger) through the private placement and received net proceeds of $743,691. These shares converted into 1,321,806 shares of the Company's common stock when the Company completed its reverse acquisition of Manhattan Research. The warrants to purchase 10,400 shares of common stock converted into warrants to purchase 132,181 common shares of the combined Company. In addition, in connection with the private placement, Manhattan Research issued to Joseph Stevens & Co., Inc., a NASD-member broker-dealer, warrants to purchase 130,511 shares of its common stock that are exercisable at $8 ($0.63 post merger) per share and expire in 2008. Upon the merger, these warrants converted into warrants to purchase 1,658,753 shares of common stock of the combined Company. (6) MERGER On February 21, 2003, the Company (formerly known as "Atlantic Technology Ventures, Inc.") completed a reverse acquisition of privately held Manhattan Research Development, Inc. (formerly Manhattan Pharmaceuticals, Inc.), a Delaware corporation. The merger was effected pursuant to an Agreement and Plan of Merger dated December 17, 2002 (the "Merger Agreement") by and among the Company, Manhattan Research and Manhattan Pharmaceuticals Acquisition Corp, the Company's wholly owned subsidiary ("MPAC"). In accordance with the terms of the Merger Agreement, MPAC merged with and into Manhattan Research, with Manhattan Research remaining as the surviving corporation and a wholly owned subsidiary of the Company. Pursuant to the Merger Agreement, upon the effective time of the merger, the outstanding shares of common stock of Manhattan Research automatically converted into an aggregate of 18,689,917 shares of the Company's common stock, which represented 80 percent of the Company's outstanding voting stock after giving effect to the merger. In addition, immediately prior to the merger Manhattan Research had outstanding options and warrants to purchase an aggregate of 172,856 shares of its common stock, which, in accordance with the terms of the merger, automatically converted into options and warrants to purchase an aggregate of 2,196,944 shares of the Company's common stock. Since the stockholders of Manhattan Research received the majority of the voting shares of the Company, the merger was accounted for as a reverse acquisition whereby Manhattan Research was the accounting acquirer (legal acquiree) and the Company was the accounting acquiree (legal acquirer). Based on the five-day average price of the Company's common stock of $0.50 per share, the purchase price approximated $2,336,000, plus approximately $33,000 of acquisition costs, which represents 20 percent of the market value of the combined Company's post-merger total outstanding shares of 23,362,396. In connection with the merger, the Company changed its name from "Atlantic Technology Ventures, Inc." to "Manhattan Pharmaceuticals, Inc." At the time of the merger, Manhattan Research recognized patents and licenses for substantially all of the purchase price. A formal purchase price allocation was completed in the third quarter of 2003 and did not result in changes to the initial estimate. As a result of acquiring Manhattan Research, the Company received new technologies. F-19

A summary of the purchase price allocation is as follows: Common stock issued $ 2,336,242 Acquisition costs paid 32,808 ----------- Total purchase price 2,369,050 Net liabilities assumed in acquisition 798,128 ----------- Excess purchase price (allocated to intangible assets) $ 3,167,178 =========== Assets purchased: Prepaid expenses $ 38,307 Property and equipment 7,683 Deposits 19,938 ----------- 65,928 ----------- Liabilities assumed: Accounts payable 323,735 Accrued expenses 540,321 ----------- 864,056 ----------- Net liabilities assumed $ (798,128) =========== The following pro forma financial information presents the combined results of operations of Manhattan Pharmaceuticals and Manhattan Research as if the acquisition had occurred as of January 1, 2003 and 2002, after giving effect to certain adjustments, including the issuance of Manhattan Pharmaceuticals common stock as part of the purchase price. For the purpose of this pro forma presentation, both Manhattan Pharmaceuticals' and Manhattan Research's financial information is presented for the three and nine months ended September 30, 2003 and 2002, respectively. The pro forma condensed consolidated financial information does not necessarily reflect the results of operations that would have occurred had Manhattan Pharmaceuticals and Manhattan Research been a single entity during such periods. F-20

THREE MONTHS ENDED SEPTEMBER 30, NINE MONTHS ENDED SEPTEMBER 30, 2002 2003 2002 ------------ ------------ ------------ Revenues $ -- $ -- $ -- Net loss $ (1,019,353) $ (4,650,838) $ (2,315,120) Weighted-average shares of common stock outstanding: Basic 12,709,676 22,150,857 12,709,676 Basic net loss per common share $ (0.08) $ (0.21) $ (0.18) (7) LICENSE AND DEVELOPMENT AGREEMENT In April 2003, the Company entered into a license and development agreement with NovaDel Pharma, Inc. ("NovaDel"), under which the Company received certain worldwide, exclusive rights to develop and commercialize products related to NovaDel's proprietary lingual spray technology for delivering propofol for pre-procedural sedation. Under the terms of this agreement, the Company agreed to use its commercially reasonable efforts to develop and commercialize the licensed products, to obtain necessary regulatory approvals and to thereafter exploit the licensed products. The agreement also provides that NovaDel will undertake to perform, at the Company's expense, a substantial portion of the development activities, including without limitation, preparation and filing of various applications with applicable regulatory authorities. In consideration of the license, upon the occurrence of certain development and regulatory events, the Company is obligated to make payments to NovaDel upon the occurrence of certain milestones, including filing a New Drug Application or "NDA" that is accepted for review by the FDA for a licensed product, filing a European Marketing Application for a licensed product, having a filed NDA approved by the FDA, having a European Marketing Application accepted for review within the European Union, receiving commercial approval in Japan, Canada, Australia and South Africa, and upon receiving regulatory approval in certain other countries. The aggregate amount of the milestone payments is significant in light of the Company's currently available resources. In addition, the Company is obligated to pay to NovaDel an annual royalty based on a fixed rate of net sales of licensed products, or if greater, the annual royalty is based on the Company's net profits from the sale of licensed products at a rate that is twice the net sales rate. In the event the Company sublicenses the licensed product to a third party, the Company is obligated to pay royalties based on a fixed rate of fees or royalties received from the sublicensee until such time as the Company recovers its out-of-pocket costs, and thereafter the royalty rate doubles. Because of the continuing development efforts required of NovaDel under the agreement, the royalty rates are substantially higher than customary for the industry. The Company is also required to pay an up-front fee in installments contingent on whether the Company receives certain amounts through financings, revenues or otherwise. To date, the Company has paid and expensed $125,000 of such up-front fee. NovaDel may terminate the agreement (i) upon 10 days' notice if the Company fails to make any required milestone or royalty payments, (ii) if the Company fails to obtain financing of at least $5,000,000 by March 31, 2004 (see Note 10), or (iii) if the Company becomes bankrupt or if a petition in bankruptcy or insolvency is filed and not dismissed within 60 days or if the Company becomes subject to a receiver or trustee for the benefit of creditors. Each party may terminate the agreement upon 30 days' written notice and an opportunity to cure in the event the other party committed a material breach or default. The Company may also terminate the agreement for any reason upon 90 days' notice to NovaDel. F-21

(8) ASSET SALE On August 22, 2003, the Company sold all of its remaining rights to the CT-3 technology to Indevus Pharmaceuticals, Inc. ("Indevus"), the Company's licensee for aggregate consideration of approximately $559,000. The purchase price was paid through a combination of cash and shares of Indevus' common stock. On the same date, the Company settled its arbitration with Dr. Sumner Burstein, the inventor of the CT-3 technology, which includes a complete mutual release from all claims that either party had against the other. As a result of the sale of the Company's rights to the CT-3 technology to Indevus, the Company recorded a one-time charge of $1,213,878 in the quarter ended September 30, 2003. In addition, on August 8, 2003, Bausch & Lomb informed the Company that it had elected not to pursue its development of the Avantix technology effective August 11, 2003. According to the terms of Company's agreement with Bausch & Lomb, the Company may re-acquire the technology from Bausch & Lomb and sell or re-license the technology to a third party. The price to re-acquire the technology from Bausch & Lomb is 50 percent of the proceeds from a third party sale to a maximum of $3 million. The Company has no further obligation under the agreement. As a result of Bausch & Lomb's decision not to develop the Avantix technology, the Company recorded a one-time charge of $1,248,230 in the quarter ended September 30, 2003 for the impairment of the related intangible asset. (9) REVERSE STOCK SPLIT On July 25, 2003, the Board of Directors adopted a resolution authorizing an amendment to the certificate of incorporation providing for a 1-for-5 combination. A resolution approving the 1-for-5 combination was thereafter consented to in writing by holders of a majority of the Company's outstanding common stock. The proposed 1-for-5 combination became effective on September 25, 2003. Accordingly, all share and per share information in these unaudited condensed consolidated financial statements has been restated to retroactively reflect the 1-for-5 combination. (10) SUBSEQUENT EVENTS On November 7, 2003, the Company completed a private placement of 1,000,000 shares of its newly-designated Series A Convertible Preferred Stock at a price of $10 per share, resulting in gross proceeds to the Company of $10,000,000. Each share of Series A Convertible Preferred Stock is convertible at the holder's election into shares of the company's common stock at a conversion price of $1.10 per share. The conversion price of the Series A Convertible Preferred Stock was less than the market value of the Company's common stock on November 7, 2003. Accordingly, the Company will record a charge for the beneficial conversion feature associated with the convertible preferred stock. Such charge is anticipated to approximate $418,000. The proceeds from the private placement will be used to fund clinical and non-clinical research and development, working capital and general corporate purposes. Maxim Group, LLC of New York, together with Paramount Capital, Inc., acted as the placement agent in connection with the private placement. F-22

21,039,530 SHARES COMMON STOCK MANHATTAN PHARMACEUTICALS, INC. --------------- PROSPECTUS --------------- _____________________ , 2004

PART II INFORMATION NOT REQUIRED IN PROSPECTUS ITEM 24. INDEMNIFICATION OF DIRECTORS AND OFFICERS. Under provisions of the certificate of incorporation and bylaws of the Registrant, directors and officers will be indemnified for any and all judgments, fines, amounts paid in settlement and reasonable expenses, including attorneys fees, in connection with threatened, pending or completed actions, suits or proceedings, whether civil, or criminal, administrative or investigative (other than an action arising by or in the right of the Registrant), if such director or officer has been wholly successful on the merits or otherwise, or is found to have acted in good faith and in a manner he or she reasonably believes to be in or not opposed to the best interests of the Registrant, and, with respect to any criminal action or proceeding, had no reasonable cause to believe his or her conduct was unlawful. In addition, directors and officers will be indemnified for reasonable expenses in connection with threatened, pending or completed actions or suits by or in the right of Registrant if such director or officer has been wholly successful on the merits or otherwise, or is found to have acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the Registrant, except in the case of certain findings by a court that such person is liable for negligence or misconduct in his or her duty to the Registrant unless such court or the Delaware Court of Chancery also finds that such person is nevertheless fairly and reasonably entitled to indemnity. The Registrant's Certificate of Incorporation also eliminates the liability of directors of the Registrant for monetary damages to the fullest extent permissible under Delaware law. Section 145 of the Delaware General Corporation Law states: (a) A corporation shall have the power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action arising by or in the right of the corporation) by reason of the fact that he is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by him in connection with such action, suit or proceeding if he acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe his conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in good faith and in a manner which he reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had reasonable cause to believe that his conduct was unlawful. (b) A corporation shall have power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that he is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust, or other enterprise against expenses (including attorneys' fees) actually and reasonably incurred by him in connection with the defense or settlement of such action or suit if he acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the corporation and except that no indemnification shall be made in respect to any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery or the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expense which the Court of Chancery or such other court shall deem proper. II-1

ITEM 25. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION. The Registrant estimates that expenses payable by the Registrant is connection with the offering described in this Registration Statement will be as follows: SEC registration fee .................................... $ 2,700 Legal fees and expenses ................................. 25,000 Accounting fees and expenses ............................ 15,000 Printing and engraving expenses.......................... 5,000 Miscellaneous ........................................... 5,000 ---------- Total ................................................... $ 52,700 ========== ITEM 26. RECENT SALES OF UNREGISTERED SECURITIES. The following sales of unregistered securities reflect the Registrant's 1-for-5 stock combination effected September 25, 2003. Dian Griesel On March 8, 2001, the Registrant entered into an agreement with The Investor Relations Group, Inc., or "IRG," under which IRG agreed to provide the Registrant investor relations services. The issuance of the warrants did not involve any public offering and therefore was exempt from registration pursuant to Section 4(2) of the Securities Act. Pursuant to this agreement the Registrant issued to Dian Griesel warrants to purchase 24,000 shares of its common stock. The term of the warrants is five years and the exercise price of the warrants is $4.375, and they vested in 1,000 share monthly increments over a 24-month period. Issuance to Fusion Capital On May 7, 2001, the Registrant entered into a common stock purchase agreement with Fusion Capital Fund II, LLC in which Fusion Capital agreed to purchase up to $6.0 million of the Registrant's common stock over a 30-month period, subject to a 6-month extension or earlier termination at our discretion. The Registrant paid a $120,000 finder's fee relating to this transaction to Gardner Resources, Ltd. and issued to Fusion Capital Fund II, LLC 120,000 common shares as a commitment fee. Those shares had an estimated fair value of $444,000 at the time of issuance. On November 30, 2001, Fusion Capital waived the $3.40 floor price provided for in the purchase agreement and purchased under the agreement 83,333 shares of the Registrant's common stock at a price of $1.20, representing an aggregate purchase price of $100,000. These issuances to Fusion Capital did not involve any public offering and were therefore exempt from registration pursuant to Section 4(2) of the Securities Act of 1933. Issuance to BH Capital Investments, L.P. and Excalibur Limited Partnership On August 1, 2001, the Registrant agreed to issue 7,000 shares of its common stock to each of BH Capital Investments, L.P. and Excalibur Limited Partnership in return for their commitment to provide the Registrant with $3.5 million of financing in connection with an asset purchase for which the Registrant had submitted a bid. The registrant issued those shares but ultimately did not purchase those assets. Issuance of these shares did not involve any public offering and therefore was exempt from registration pursuant to Section 4(2) of the Securities Act of 1933. II-2

Issuance to Proteus Capital Corp. On August 9, 2001, the Registrant entered into an agreement with Proteus Capital Corp ("Proteus") in which Proteus agreed to assist the Registrant with raising additional funds. Pursuant to this agreement, the Registrant granted Douglas J. Newby and Samuel Gerszonowicz, both principals of Proteus, one warrant each to purchase 50,000 shares of the Registrant's common stock at $2.95 per share, which was the average closing stock price for the two weeks ending August 17, 2001. The warrants were fully vested on the date of the agreement and were outstanding at December 31, 2001. The term of the warrants is five years. Issuance of these warrants did not involve any public offering and therefore was exempt from registration pursuant to Section 4(2) of the Securities Act of 1933. 2001 Private Placement On December 3, 2001, the Registrant issued to certain investors in a private placement an aggregate of 1,666,663 shares of its common stock and warrants exercisable for a further 1,666,663 shares of its common stock. The purchase price per share of common stock was $1.20. The term of the warrants is five years and the per-share exercise price is $1.45. In connection with this private placement, the Registrant issued to Joseph Stevens & Company, Inc. on December 3, 2001, as part of its placement fee, warrants to purchase 166,666 shares of common stock. The term of the warrants is five years and the per-share exercise price is $1.45. The issuances did not involve any public offering and therefore were exempt from the registration requirements of Section 5 of the Securities Act pursuant to Section 4(2) of the Securities Act. Issuance to Consultant In April 2002, the Registrant issued 75,000 shares of its common stock to a consultant in exchange for consulting and advisory services valued at $15,000 rendered to the Registrant. The registrant relied upon the exemption from federal registration under Section 4(2) of the Securities Act, based on its belief that the issuance did not involve a public offering, the consultant was sophisticated in financial and business matters and the consultant had access to information pertaining to our company. Issuance to Fusion Capital Fund II, LLC Pursuant to a common stock purchase agreement dated May 7, 2001, between the Registrant and Fusion Capital Fund II, LLC, the Registrant issued 10,000 shares of its common stock in May 2002 in exchange for aggregate proceeds of $1,666,67. This issuance was exempt from federal registration requirements pursuant to Section 4(2) of the Securities Act because the Registrant had a reasonable basis to conclude that Fusion Capital Fund II, LLC was an accredited investor, was sophisticated in financial and business matters and because the issuance did otherwise involve a public offering. Issuance in connection with Acquisition of Manhattan Research Development, Inc. In connection with the Registrant's merger with Manhattan Research Development, Inc., effective as of February 21, 2003, it issued an aggregate of 18,689,916 shares of its common stock to the former stockholders of Manhattan Research Development in exchange for their shares of Manhattan Research Development common stock. In addition, at the time of the merger, Manhattan Research Development had outstanding warrants to purchase an aggregate of 864,280 shares of its common stock, which automatically converted into warrants to purchase an aggregate of 2,196,943 shares of the Registrant's common stock. The form of warrant such warrant was attached as Exhibit 4.1 to the Registrant's Form 10-QSB for the quarter ended March 31, 2003. The Registrant relied on the exemption from federal registration under Section 4(2) of the Securities Act, based on its belief that the issuance of such securities did not involve a public offering, as there were fewer than 35 "non-accredited" investors, all of whom, either alone or through a purchaser representative, had such knowledge and experience in financial and business matters so that each was capable of evaluating the risks of the investment. II-3

Series A Convertible Preferred Stock On November 5, 2003, the Registrant issued 1,000,000 shares of its Series A Convertible Preferred Stock at a total offering price of $10,000,000. Each share of Series A Convertible Preferred Stock is convertible into approximately 9.1 shares of common stock. The Registrant engaged Maxim Group LLC and, indirectly, Paramount Capital, Inc. as placement agents and paid aggregate commissions of $700,000, plus non-accountable expenses of $150,000. The Registrant also issued to the placement agents warrants to purchase an aggregate of 9,090,909 shares of common stock at a price of $1.10 per share. The offer and sale of the Series A Convertible Preferred Stock and the placement agent warrants did not involve a public offering and was made solely to "accredited investors," and was, therefore, exempt from the registration requirements of the Securities Act pursuant to Section 4(2) and Rule 506 promulgated thereunder. January 2004 Private Placement On January 12, 2004, the Registrant issued 3,368,637 shares of common stock at a price of $1.10 per share. The Registrant engaged Paramount Capital, Inc. as a placement agent in connection with the private placement, paying an aggregate commission of approximately $251,000, plus non-accountable expenses of $10,000. The Registrant also issued to the placement agent a warrant to purchase 326,499 shares of common stock exercisable at a price of $1.10 per share. The offer and sale of the shares of common stock and the placement agent warrants did not involve a public offering and was made solely to accredited investors, and was, therefore, exempt from the registration requirements of the Securities Act pursuant to Section 4(2) and Rule 506 promulgated thereunder. ITEM 16. EXHIBITS. The following exhibits are filed as part of this Registration Statement: Exhibit No. Description ----------- ----------- 2.1 Agreement and Plan of Merger among the Company, Manhattan Pharmaceuticals Acquisition Corp. and Manhattan Research Development, Inc. (formerly Manhattan Pharmaceuticals, Inc.) dated December 17, 2002 (incorporated by reference to Exhibit 2.1 from Form 8-K filed March 5, 2003). 3.1 Certificate of incorporation, as amended through September 25, 2003 (incorporated by reference top Exhibit 3.1 to the Registrant's Form 10-QSB for the quarter ended September 30, 2003). 3.2 Bylaws, as amended to date (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). 3.3 Certificate of Designations of Series A Convertible Preferred Stock. 4.1 Form of unit certificate (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). II-4

Exhibit No. Description ----------- ----------- 4.2 Specimen common stock certificate (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). 4.3 Form of redeemable warrant certificate (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). 4.4 Form of redeemable warrant agreement between the Registrant and Continental Stock Transfer & Trust Company (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). 4.5 Form of underwriter's warrant certificate (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). 4.6 Form of underwriter's warrant agreement between the Registrant and Joseph Stevens & Company, L.P. (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). 4.7 Form of subscription agreement between Registrant and the selling stockholders (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). 4.8 Form of bridge warrant (incorporated by reference from Registrant's registration statement on Form SB-2, as amended (File No. 33-98478)). 4.9 Warrant issued to John Prendergast to purchase 37,500 shares of Registrant's common stock (incorporated by reference from Exhibit 10.24 to the Registrant's Form 10-QSB for the quarter ended March 31, 1997). 4.10 Warrant No. 1 issued to Joseph Stevens & Company, Inc. to purchase 150,000 shares of Registrant's Common Stock exercisable January 4, 2000 (incorporated by reference to Exhibit 10.28 to the Registrant's Form 10-KSB for the year ended December 31, 1999). 4.11 Warrant No. 2 issued to Joseph Stevens & Company, Inc. to purchase 150,000 shares of Registrant's Common Stock exercisable January 4, 2001 (incorporated by reference to Exhibit 10.29 to the Registrant's Form 10-KSB for the year ended December 31, 1999). 4.12 Warrant No. 3 issued to Joseph Stevens & Company, Inc. to purchase 150,000 shares of Registrant's Common Stock exercisable January 4, 2002 (incorporated by reference to Exhibit 10.30 to the Registrant's Form 10-KSB for the year ended December 31, 1999). 4.13 Warrant certificate issued May 12, 2000, by the Registrant to TeraComm Research, Inc. (incorporated by reference from Exhibit 10.3 to the registrant's Form 10-QSB for the quarter ended June 30, 2000). 4.14 Form of stock purchase warrants issued on September 28, 2000 to BH Capital Investments, L.P., exercisable for shares of common stock of the Registrant (incorporated by reference to Exhibit 10.6 to the Registrant's Form 10-QSB for the quarter ended September 30, 2000). 4.15 Form of stock purchase warrants issued on September 28, 2000 to Excalibur Limited Partnership, exercisable for shares of common stock of the Registrant (incorporated by reference to Exhibit 10.7 to the Registrant's Form 10-QSB for the quarter ended September 30, 2000). II-5

Exhibit No. Description ----------- ----------- 4.16 Warrant certificate issued March 8, 2001 by the Registrant to Dian Griesel (incorporated by reference to Exhibit 10.56 to the Registrant's Form 10-QSB for the quarter ended March 31, 2001). 4.17 Form of warrant issued by Manhattan Research Development, Inc., which automatically converted into warrants to purchase shares of the Registrant's common stock upon the merger transaction with such company (incorporated by reference to Exhibit 4.1 to the Registrant's Form 10-QSB for the quarter ended March 31, 2003). 4.18 Form of warrant issued to placement agents in connection with the Registrant's November 2003 private placement of Series A Convertible Preferred Stock and the Registrant's January 2004 private placement. 5.1 Opinion of Maslon Edelman Borman & Brand, LLP. 10.1 1995 stock option plan, as amended (incorporated by reference to Exhibit 10.18 to the Registrant's Form 10-QSB for the quarter ended September 30, 1996). 10.2 Common stock purchase agreement dated March 16, 2001, between Registrant and Fusion Capital Fund II, LLC (incorporated by reference from Exhibit 10.55 of the Registrant's Form 10-QSB for the quarter ended March 31, 2001). 10.3 Common stock purchase agreement dated as of May 7, 2001, between Registrant and Fusion Capital Fund II, LLC (incorporated by reference to Exhibit 10.57 of Amendment No. 1 to the Registrant's registration statement on Form SB-2/A filed June 29, 2001 (File 333-61974)). 10.4 Form of registration rights agreement between Registrant and Fusion Capital Fund II, LLC (incorporated by reference to Exhibit 10.58 of Amendment No. 1 to the Registrant's registration statement on Form SB-2/A filed June 29, 2001 (File 333-61974)). 10.5 Third Amendment to Employment Agreement dated February 21, 2003 between the Registrant and Nicholas J. Rossettos (incorporated by reference to Exhibit 10.3 to the Registrant's Form 10-QSB for the quarter ended March 31, 2003). 10.6 Employment Agreement dated January 2, 2003, between Manhattan Research Development, Inc. and Leonard Firestone, as assigned to the Registrant effective as of February 21, 2003 (incorporated by reference to Exhibit 10.4 to the Registrant's Form 10-QSB for the quarter ended March 31, 2003). 10.7 Employment Agreement dated February 28, 2003, between the Registrant and Nicholas J. Rossettos (incorporated by reference to Exhibit 10.5 to the Registrant's Form 10-QSB for the quarter ended March 31, 2003). 10.8 License Agreement dated on or about February 28, 2002 between Manhattan Research Development, Inc. (f/k/a Manhattan Pharmaceuticals, Inc.) and Oleoyl-Estrone Developments SL (incorporated by reference to Exhibit 10.6 to the Registrant's Form 10-QSB for the quarter ended March 31, 2003).++ 10.9 License Agreement dated April 4, 2003 between the Registrant and NovaDel Pharma, Inc. (incorporated by reference to Exhibit 10.1 to the Registrant's Form 10-QSB for the quarter ended June 30, 2003).++ II-6

Exhibit No. Description ----------- ----------- 10.10 Employment Agreement dated January 2, 2004 between the Registrant and Leonard Firestone. 16.1 Letter of KPMG LLP (incorporated by reference to Exhibit 99 filed with the Registrant's Form 8-K filed on December 12, 2002). 23.1 Consent of J.H. Cohn LLP. 23.2 Consent of Weinberg & Company, P.A. 23.3 Consent of Maslon Edelman Borman & Brand, LLP (included as part of Exhibit 5.1). 24.1 Power of Attorney (included on signature page hereof). - ----------- ++ Confidential treatment has been requested as to certain portions of these exhibits pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. ITEM 28. UNDERTAKINGS. (a) Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue. (b) The undersigned Registrant hereby undertakes: (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement: (i) to include any prospectus required by Section 10(a)(3) of the Securities Act; (ii) to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement; and (iii) to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement; (2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof; (3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering; and II-7

(4) That, for purposes of determining any liability under the Securities Act, each filing of the Registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. II-8

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form SB-2 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, State of New York, on January 13, 2004. MANHATTAN PHARMACEUTICALS, INC. By: /s/ Leonard Firestone ------------------------------------- Leonard Firestone President and Chief Executive Officer POWER OF ATTORNEY Each person whose signature to this Registration Statement appears below hereby constitutes and appoints David M. Tanen and Nicholas J. Rossettos as his or her true and lawful attorney-in-fact and agent, with full power of substitution, to sign on his or her behalf individually and in the capacity stated below and to perform any acts necessary to be done in order to file all amendments to this Registration Statement and any and all instruments or documents filed as part of or in connection with this Registration Statement or the amendments thereto and each of the undersigned does hereby ratify and confirm all that said attorney-in-fact and agent, or his substitutes, shall do or cause to be done by virtue hereof. Pursuant to the requirements of the Securities Exchange Act of 1933, this Registration Statement has been signed as of the 13th day of January, 2004, by the following persons in the capacities indicated. NAME TITLE ---- ----- /s/ Leonard Firestone President and Chief Executive Officer (Principal Executive - --------------------------------------- Officer) Leonard Firestone /s/ Nicholas J. Rossettos Chief Operating Officer, Chief Financial Officer, - --------------------------------------- Treasurer and Secretary (Principal Financial and Nicholas J. Rossettos Accounting Officer) /s/ Joshua Kazam Director - --------------------------------------- Joshua Kazam /s/ Joan Pons Director - --------------------------------------- Joan Pons /s/ David M. Tanen Director - --------------------------------------- David M. Tanen /s/ Michael Weiser Director - --------------------------------------- Michael Weiser II-9

EXHIBIT INDEX EXHIBIT DESCRIPTION OF DOCUMENT ------- ----------------------- 3.3 Certificate of Designation of Series A Convertible Preferred Stock 4.18 Form of warrant issued to placement agents in connection with November 2003 private placement of Series A Convertible Preferred Stock. 5.1 Opinion of Maslon Edelman Borman & Brand, LLP 10.10 Employment Agreement dated January 2, 2004, between Registrant and Leonard Firestone 23.1 Consent of J.H. Cohn LLP 23.2 Consent of Weinberg & Company, P.A. 23.3 Consent of Maslon Edelman Borman & Brand, LLP (included as part of Exhibit 5.1) 24.1 Power of Attorney (included on signature page hereof) II-10

EXHIBIT 3.3 CERTIFICATE OF DESIGNATIONS of SERIES A CONVERTIBLE PREFERRED STOCK of MANHATTAN PHARMACEUTICALS, INC. Pursuant to Section 151(g) of the General Corporation Law of the State of Delaware MANHATTAN PHARMACEUTICALS, INC., a corporation organized and existing under the laws of the State of Delaware (the "Corporation"), does hereby certify that, pursuant to the authority conferred on the Board of Directors of the Corporation by the Certificate of Incorporation, as amended and restated to date (the "Certificate of Incorporation"), of the Corporation and in accordance with Section 151(g) of the General Corporation Law of the State of Delaware, the Board of Directors of the Corporation adopted the following resolution establishing a series of One Million Five Hundred Thousand (1,500,000) shares of Preferred Stock of the Corporation designated as "Series A Convertible Preferred Stock": RESOLVED, that pursuant to the authority conferred on the Board of Directors of this Corporation by the Certificate of Incorporation, a series of Preferred Stock, par value $0.001 per share, of the Corporation is hereby established and created, and that the designation and number of shares thereof and the voting and other powers, preferences and relative, participating, optional or other rights of the shares of such series and the qualifications, limitations and restrictions thereof are as follows: 1. Designation and Amount. There shall be a series of Preferred Stock designated as "Series A Convertible Preferred Stock" and the number of shares constituting such series shall be one million five hundred thousand (1,500,000). Such series is referred to herein as the "Series A Preferred Stock" and shall have a stated value (the "Stated Value") of $10.00 per share. The Series A Preferred Stock shall, with respect to dividend rights, have the entitlements set forth herein and shall, with respect to rights on liquidation, dissolution and winding up of the affairs of the Corporation, rank senior to all classes of Common Stock of the Corporation and, subject to the rights of any series of Preferred Stock that may from time to time come into existence providing that the Series A Preferred Stock shall rank junior or senior thereto, other equity securities of the Corporation. Such number of shares may be decreased by resolution of the Board of Directors of the Corporation; provided, however, that no decrease shall reduce the number of shares of Series A Preferred Stock to less than the number of shares then issued and outstanding and payable with respect to dividends. 1

2. Dividends and Distributions. (a) Commencing on the date issued, the holders of the Series A Preferred Stock shall be entitled to receive cumulative dividends on each share of Series A Preferred Stock, payable in kind, at the rate of 5% per annum (computed on the basis of a 365-day year) of the Dividend Base Amount (as defined below), payable semi-annually in arrears. Such dividends shall be paid in additional duly authorized, fully-paid and non-assessable shares of Series A Preferred Stock. Such dividends shall accrue and accumulate whether or not they have been declared and whether or not there are profits, surplus or other funds of the Corporation legally available for the payment of dividends. The "Dividend Base Amount" shall be $10.00 plus all accrued but unpaid dividends (subject to appropriate adjustment to reflect any stock split, combination, reclassification or reorganization of the Series A Preferred Stock). The number of shares to be paid upon any payment in kind dividend for purposes of this Section 2(a) shall be the amount of the dividend divided by the Stated Value (subject to appropriate adjustment to reflect any stock split, combination, reclassification or reorganization of the Series A Preferred Stock). (b) In addition to the foregoing, subject to the prior and superior rights of the holders of any shares of any series or class of capital stock ranking prior and superior to the shares of Series A Preferred Stock with respect to dividends, the holders of shares of Series A Preferred Stock shall be entitled to receive, as, when and if declared by the Board of Directors of the Corporation, out of assets legally available for that purpose, dividends or distributions in cash, stock or otherwise payable to the holders of Common Stock on an as converted basis. (c) Any dividend or distribution (other than that referenced in Section 2(b)) payable to the holders of the Series A Preferred Stock pursuant to this Section 2 shall be paid to such holders at the same time as the dividend or distribution on the Junior Stock (as defined below) or any other capital stock of the Company by which it is measured is paid. (d) All dividends or distributions declared upon the Series A Preferred Stock shall be declared pro rata per share. (e) Any reference to "distribution" contained in this Section 2 shall not be deemed to include any distribution made in connection with or in lieu of any Liquidation Event (as defined below). (f) "Junior Stock" shall mean the Common Stock and any shares of preferred stock of any series or class of the Corporation, whether presently outstanding or hereafter issued, which are junior to the shares of Series A Preferred Stock with respect to (i) the distribution of assets on any Liquidation Event (as defined below), (ii) dividends or (iii) voting. 3. Liquidation Preference. (a) In the event of a (i) liquidation, dissolution or winding up of the Corporation, whether voluntary or involuntary, (ii) a sale of all or substantially all of the assets of the Corporation or (iii) voluntary or involuntary bankruptcy of the Corporation (subparagraphs (i), (ii) and (iii) being collectively referred to as a "Liquidation Event"), after payment or provision for payment of debts and other liabilities of the Corporation, the holders of the Series A Preferred Stock then outstanding shall be entitled to be paid out of the assets of the Corporation available for distribution to its stockholders, whether such assets are capital, surplus, or earnings, before and in preference to any payment or declaration and setting apart for payment of any amount shall be made in respect of any Junior Stock, an amount equal to $10.00 per share plus an amount equal to all declared and/or unpaid dividends thereon. In the case of property or in the event that any such securities are restricted, the value of such property or securities shall be determined by agreement between the Corporation and the holders of a majority of the shares of Series A Preferred Stock then outstanding. If upon any Liquidation Event, whether voluntary or involuntary, the assets to be distributed to the holders of the Series A Preferred Stock shall be insufficient to permit the payment to such stockholders of the full preferential amounts aforesaid, then all of the assets of the Corporation to be distributed shall be so distributed ratably to the holders of the Series A Preferred Stock on the basis of the number of shares of Series A Preferred Stock held. A consolidation or merger of the Corporation with or into another corporation shall not be considered a Liquidation Event and, accordingly, the Corporation shall make appropriate provision to ensure that the terms of this Certificate of Designations survive any such transaction. All shares of Series A Preferred Stock shall rank as to payment upon the occurrence of any Liquidation Event senior to the Common Stock as provided herein and, unless the terms of such other series shall provide otherwise, senior to all other series of the Corporation's preferred stock. 2

(b) Upon the completion of the distribution required by subparagraph (a) of this Section 3 and subject to any other distribution that may be required with respect to any series of Preferred Stock that may from time to time come into existence, the remaining assets of the Corporation available for distribution to stockholders shall be distributed among the holders of Common Stock pro rata based on the number of shares of Common Stock held by the holders of Common Stock. (c) Any securities or other property to be delivered to the holders of the Series A Preferred Stock pursuant to Section 3(a) hereof shall be valued as follows: (i) Securities not subject to an investment letter or other similar restriction on free marketability: (A) If traded on a securities exchange or on Nasdaq (as defined below), or if actively traded over-the-counter, the value shall be deemed to be the Market Price (as defined below) of the securities as of the date of valuation. (B) If there is no such active public market for the securities, the value shall be the Fair Market Value (as defined below) of the securities. (ii) The "Market Price" of a security shall mean the volume weighted average price of such security, for five consecutive trading days, ending with the day prior to the date as of which the Market Price is being determined, calculated by adding the aggregate dollars traded for every transaction in such 5-day period (price multiplied by the number of shares traded) and then dividing by the total shares traded during the 5-day period. (iii) The "Fair Market Value" of any asset (including any security) means the fair market value thereof as mutually determined by the Corporation and the holders of a majority (measured in terms of voting power) of the outstanding shares of Series A Preferred Stock. (iv) The "Closing Price" for any security for each trading day shall be the reported closing price of such security on the national securities exchange on which such security is listed or admitted to trading, or, if such security is not listed or admitted to trading on any national securities exchange, shall mean the reported closing price of such security on the Nasdaq SmallCap Market or the Nasdaq National Market System (collectively referred to as "Nasdaq") or, if such security is not listed or admitted to trading on any national securities exchange or quoted on Nasdaq, shall mean the reported closing price of such security on the principal securities exchange on which such security is listed or admitted to trading or, if such security is not listed or admitted to trading on a national securities exchange, quoted on Nasdaq or listed or admitted to trading on any other securities exchange, shall mean the closing or last sale price in the over-the-counter market. 3

(v) "Trading day" shall mean a day on which the securities exchange or Nasdaq used to determine the Closing Price is open for the transaction of business or the reporting of trades or, if the Closing Price is not so determined, a day on which such securities exchange is open for the transaction of business. (vi) If the holders of a majority of the Series A Preferred Stock and the Corporation are unable to reach agreement on any valuation matter, such valuation shall be submitted to and determined by a nationally recognized independent investment bank selected by the Board of Directors of the Corporation and the holders of a majority of the Series A Preferred Stock (or, if such selection cannot be agreed upon promptly, or in any event within ten days, then such valuation shall be made by a nationally recognized independent investment banking firm selected by the American Arbitration Association in New York City in accordance with its rules), the costs of which valuation shall be paid for by the Corporation. 4. Conversion. (a) Right of Conversion. The shares of Series A Preferred Stock shall be convertible, in whole or in part, at the option of the holder thereof and upon notice to the Corporation as set forth in Section 4(c) below, into fully paid and nonassessable shares of Common Stock and such other securities and property as hereinafter provided. The initial conversion price per share of Common Stock is $1.10 (the "Conversion Price") and shall be subject to adjustment as provided herein. The rate at which each share of Series A Preferred Stock is convertible at any time into Common Stock (the "Conversion Rate") shall be determined by dividing the then existing Conversion Price into $10.00. (b) Dividends Upon Conversion. Upon conversion, all accrued and unpaid dividends (whether or not declared) on the Series A Preferred Stock, if any, shall be cancelled. (c) Conversion Procedures. (1) Any holder of shares of Series A Preferred Stock desiring to convert such shares into Common Stock pursuant to Section 4(a) hereof shall surrender the certificate or certificates evidencing such shares of Series A Preferred Stock at the office of the transfer agent for the Series A Preferred Stock (the "Transfer Agent"), which certificate or certificates, if the Corporation shall so require, shall be duly endorsed to the Corporation or in blank, or accompanied by proper instruments of transfer to the Corporation or in blank, accompanied by irrevocable written notice to the Corporation that the holder elects so to convert such shares of Series A Preferred Stock and specifying the name or names (with address) in which a certificate or certificates evidencing shares of Common Stock are to be issued. The Corporation need not deem a notice of conversion to be received unless the holder complies with all the provisions hereof. The Corporation will instruct the Transfer Agent (which may be the Corporation) to make a notation of the date that a notice of conversion is received, which date shall be deemed to be the date of receipt for purposes hereof, so long as receipt is prior to 4:00 p.m. New York City Time on a Trading Day and otherwise shall be deemed to be received on the next following Trading Day. 4

(2) The Corporation shall, as soon as practicable after such deposit of certificates evidencing shares of Series A Preferred Stock accompanied by the written notice and compliance with any other conditions herein contained, deliver to the person for whose account such shares of Series A Preferred Stock were so surrendered, or to the nominee or nominees of such person, certificates evidencing the number of full shares of Common Stock to which such person shall be entitled as aforesaid, together with a cash adjustment of any fraction of a share as hereinafter provided. Subject to the following provisions of this paragraph, such conversion shall be deemed to have been made as of the date of receipt (in accordance with the third sentence of Section 4(c)(1) hereof) of the shares of Series A Preferred Stock to be converted, and the person or persons entitled to receive the Common Stock deliverable upon conversion of such Series A Preferred Stock shall be treated for all purposes as the record holder or holders of such Common Stock on such date; provided, however, that the Corporation shall not be required to convert any shares of Series A Preferred Stock while the stock transfer books of the Corporation are closed for any purpose, but the surrender of Series A Preferred Stock for conversion during any period while such books are so closed shall become effective for conversion immediately upon the reopening of such books as if the surrender had been made on the date of such reopening, and the conversion shall be at the conversion rate in effect on such date. (3) All notices of conversion shall be irrevocable; provided, however, that if the Corporation has sent notice of an event pursuant to Section 4(h) hereof, a holder of Series A Preferred Stock may, at its election, provide in its notice of conversion that the conversion of its shares of Series A Preferred Stock shall be contingent upon the occurrence of the record date or effectiveness of such event (as specified by such holder), provided that such notice of conversion is received by the Corporation prior to such record date or effective date, as the case may be. (d) Mandatory Conversion. The Series A Preferred Stock shall automatically be converted into fully paid and non-assessable shares of Common Stock at the then effective Conversion Price as set forth in Section 4(a) upon the earlier to occur of (a) the date on which the Corporation completes a financing in which gross proceeds exceed $10,000,000 at a pre-money valuation greater than or equal to $30,000,000 (a "Qualified Financing") or (b) in the event that the Closing Price of the Company's Common Stock exceeds 200% of the Conversion Price for 20 consecutive trading days (a "Trading Event"). Any shares of Series A Preferred Stock so converted shall be treated as having been surrendered by the holder thereof for conversion pursuant to Section 4 on the date of such mandatory conversion (unless previously converted at the option of the holder). (e) Adjustment of Conversion Rate and Conversion Price. In case of any reclassification, capital reorganization or other change of outstanding shares of Common Stock, or in case of any consolidation or merger of the Corporation with or into another entity (other than a consolidation or merger in which the Corporation is the continuing entity and which does not result in any reclassification, capital reorganization or other change of outstanding shares of Common Stock other than the number thereof), or in case of any sale or conveyance to another entity of the property of the Corporation as, or substantially as, an entirety (other than a sale/leaseback, mortgage or other financing transaction), the Corporation shall cause effective provision to be made so that each holder of a share of Series A Preferred Stock shall be entitled to receive, upon conversion of such share of Series A Preferred Stock, the kind and number of shares of stock or other securities or property (including cash) receivable upon such reclassification, capital reorganization or other change, consolidation, merger, sale or conveyance by a holder of the number of shares of Common Stock into which such share of Series A Preferred Stock was convertible immediately prior to such reclassification, capital reorganization or other change, consolidation, merger, sale or conveyance. Any such provision shall include provision for adjustments that shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 4(e). The Corporation shall not effect any such reclassification, capital reorganization or other change, consolidation, merger, sale or conveyance unless prior to or simultaneously with the consummation thereof the successor (if other than the Corporation) resulting from such transaction or the entity purchasing assets or other appropriate entity shall assume, by written instrument executed and delivered to a duly authorized and appointed registrar and transfer agent of the Series A Preferred Stock (the "Transfer Agent"), the obligation to deliver to the holder of each share of Series A Preferred Stock such shares of stock, securities or assets as, in accordance with the foregoing provisions, such holders may be entitled to receive and the other obligations under this Certificate of Designations. The foregoing provisions shall similarly apply to successive reclassifications, capital reorganizations and other changes of outstanding shares of Common Stock and to successive consolidations, mergers, sales or conveyances. 5

(f) No Fractional Shares. No fractional shares or scrip representing fractional shares of Common Stock shall be issued upon conversion of Series A Preferred Stock. If more than one certificate evidencing shares of Series A Preferred Stock shall be surrendered for conversion at one time by the same holder, the number of full shares issuable upon conversion thereof shall be computed on the basis of the aggregate number of shares of Series A Preferred Stock so surrendered. Instead of any fractional share of Common Stock which would otherwise be issuable upon conversion of any shares of Series A Preferred Stock, the Corporation shall pay a cash adjustment in respect of such fractional interest in an amount equal to the same fraction of the Market Price as of the close of business on the day of conversion. (g) Reservation of Shares; Transfer Taxes; Etc. The Corporation shall at all times reserve and keep available, out of its authorized and unissued shares of Common Stock, solely for the purpose of effecting the conversion of the Series A Preferred Stock, including shares of Series A Preferred Stock issued as payment of dividends pursuant to Section 2 hereof, such number of shares of its Common Stock free of preemptive rights as shall be sufficient to effect the conversion of all shares of Series A Preferred Stock from time to time outstanding. The Corporation shall use its best efforts from time to time, in accordance with the laws of the State of Delaware, to increase the authorized number of shares of Common Stock if at any time the number of shares of authorized, unissued and unreserved Common Stock shall not be sufficient to permit the conversion of all the then-outstanding shares of Series A Preferred Stock. (h) Prior Notice of Certain Events. In case: (i) the Corporation shall declare any dividend (or any other distribution); or 6

(ii) the Corporation shall authorize the granting to the holders of Common Stock of rights or warrants to subscribe for or purchase any shares of stock of any class or of any other rights or warrants; or (iii) of any reclassification of Common Stock (other than a subdivision or combination of the outstanding Common Stock, or a change in par value, or from par value to no par value, or from no par value to par value); or (iv) of any consolidation or merger to which the Corporation is a party and for which approval of any stockholders of the Corporation shall be required, or of the sale or transfer of all or substantially all of the assets of the Corporation or of any compulsory share exchange whereby the Common Stock is converted into other securities, cash or other property; or (v) of the voluntary or involuntary dissolution, liquidation or winding up of the Corporation (including, without limitation, a Liquidation Event); then the Corporation shall cause to be filed with the Transfer Agent for the Series A Preferred Stock, and shall cause to be mailed to the holders of record of the Series A Preferred Stock, at their last addresses as they shall appear upon the stock transfer books of the Corporation, at least 20 days prior to the applicable record date hereinafter specified, a notice stating (x) the date on which a record (if any) is to be taken for the purpose of such dividend, distribution or granting of rights or warrants or, if a record is not to be taken, the date as of which the holders of Common Stock of record to be entitled to such dividend, distribution, rights or warrants are to be determined and a description of the cash, securities or other property to be received by such holders upon such dividend, distribution or granting of rights or warrants or (y) the date on which such reclassification, consolidation, merger, sale, transfer, share exchange, dissolution, liquidation or winding up or other Liquidation Event is expected to become effective, the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their shares of Common Stock for securities or other property deliverable upon such exchange, dissolution, liquidation or winding up or other Liquidation Event and the consideration, including securities or other property, to be received by such holders upon such exchange; provided, however, that no failure to mail such notice or any defect therein or in the mailing thereof shall affect the validity of the corporate action required to be specified in such notice. (i) Other Changes in Conversion Rate. (i) The Corporation from time to time may increase the Conversion Rate by any amount for any period of time if the period is at least 20 days and if the increase is irrevocable during the period. Whenever the Conversion Rate is so increased, the Corporation shall mail to holders of record of the Series A Preferred Stock a notice of the increase at least 15 days before the date the increased Conversion Rate takes effect, and such notice shall state the increased Conversion Rate and the period it will be in effect. (ii) The Corporation may (but shall not be obligated to) make such increases in the Conversion Rate, in addition to those required or allowed by this Section 4, as shall be determined by it, as evidenced by a resolution of the Board of Directors, to be advisable in order to avoid or diminish any income tax to holders of Common Stock resulting from any dividend or distribution of stock or issuance of rights or warrants to purchase or subscribe for stock or from any event treated as such for income tax purposes. 7

(iii) Notwithstanding anything to the contrary herein, in no case shall the Conversion Price be adjusted to an amount less than $0.001 per share, the current par value of the Common Stock into which the Series A Preferred Stock is convertible. (j) Ambiguities/Errors. The Board of Directors of the Corporation shall have the power to resolve any ambiguity or correct any error in the provisions relating to the convertibility of the Series A Preferred Stock, and its actions in so doing shall be final and conclusive. 5. Voting Rights. (a) General. Except as otherwise provided herein, in the Certificate of Incorporation or the Bylaws of the Corporation, the holders of shares of Series A Preferred Stock, the holders of shares of Common Stock and the holders of any other class or series of shares entitled to vote with the Common Stock shall vote together as one class on all matters submitted to a vote of stockholders of the Corporation. In any such vote, each share of Series A Preferred Stock shall entitle the holder thereof to cast the number of votes equal to the number of votes which could be cast in such vote by a holder of the Common Stock into which such share of Series A Preferred Stock is convertible on the record date for such vote, or if no record date has been established, on the date such vote is taken. Any shares of Series A Preferred Stock held by the Corporation or any entity controlled by the Corporation shall not have voting rights hereunder and shall not be counted in determining the presence of a quorum. (b) Class Voting Rights. In addition to any vote specified in Section 5(a), so long as at least 50% of the Series A Preferred Stock shall be outstanding, the affirmative vote or consent of the holders of at least 66.6% of all outstanding Series A Preferred Stock voting separately as a class shall be necessary to permit, effect or validate any one or more of the following: (i) the amendment, alteration or repeal of any provision of the Certificate of Incorporation or the Bylaws of the Corporation so as adversely to affect the relative rights, preferences, qualifications, limitations or restrictions of the Series A Preferred Stock, (ii) the declaration or payment of any dividend or distribution on any securities of the Corporation other than the Series A Preferred Stock pursuant to and in accordance with the provisions of this Certificate of Designations, or the authorization of the repurchase of any securities of the Corporation, (iii) the authorization, issuance or increase of any security ranking prior to or on parity with the Series A Preferred Stock (A) upon a Liquidation Event or (B) with respect to the payment of any dividends or distributions, (iv) the approval of any liquidation, dissolution or sale of substantially all of the assets of the Corporation and (v) effect any amendment of the Corporation's certificate of incorporation or Bylaws that would materially adversely affect the rights of the Series A Preferred Stock. The vote as contemplated herein shall specifically not be required for (x) issuances of Common Stock, or (y) any consolidation or merger of the Corporation with or into another corporation whether or not the Corporation is the surviving entity, a sale or transfer of all or part of the Corporation's assets for cash, securities or other property, or a compulsory share exchange. 6. Redemption. (a) Restriction on Redemption and Purchase. Except as expressly provided in this Section 6, the Corporation shall not have the right to purchase, call, redeem or otherwise acquire for value any or all of the Series A Preferred Stock. 8

(b) Optional Redemption. Provided that the shares of Common Stock underlying the Series A Preferred Stock are available for resale pursuant to an effective registration statement, at any time following the first anniversary of the issuance of the Series A Preferred Stock, the Corporation may, at its option, redeem the Series A Preferred Stock in whole, but not in part, at the Redemption Price hereinafter specified; provided, however, that the Corporation shall not redeem Series A Preferred Stock or give notice of any redemption pursuant to this Section 6 unless the Corporation has sufficient and lawful funds to redeem all of the then outstanding Series A Preferred Stock exclusive of shares of Series A Preferred Stock the Corporation has a reason to know will be converted to Common Stock; provided, further, that the Corporation shall not have the right to redeem shares of Common Stock issued upon conversion of the Series A Preferred Stock. The date on which the Series A Preferred Stock is to be redeemed pursuant to this Section 6(b) is herein called the "Redemption Date." (c) Redemption Price. The Redemption Price of the Series A Preferred Stock (the "Redemption Price") shall be an amount per share equal to 110% of the Stated Value (subject to appropriate adjustment to reflect any stock split, combination, reclassification or reorganization of the Series A Preferred Stock) plus all accrued and unpaid dividends thereon calculated at the Stated Value, in the case of Series A Preferred Stock, up to and including the Redemption Date. (d) Redemption Notice. The Corporation shall, not less than 30 days nor more than 60 days prior to the Redemption Date, give written notice ("Redemption Notice") to each holder of record of Series A Preferred Stock to be redeemed. The Redemption Notice shall state: (i) that all of the outstanding shares of Series A Preferred Stock are to be redeemed and the total number of shares being redeemed; (ii) the number of shares of Series A Preferred Stock held by the holder which the Corporation intends to redeem; (iii) the Redemption Date and Redemption Price; (iv) that the holder's right to convert the Series A Preferred Stock into shares of the Common Stock as provided in Section 9 hereof will terminate on the Redemption Date; and (v) the time, place and manner in which the holder is to surrender to the Corporation the certificate or certificates representing the shares of Series A Preferred Stock to be redeemed. (e) Payment of Redemption Price and Surrender of Stock. On the Redemption Date, the Redemption Price of the Series A Preferred Stock scheduled to be redeemed or called for redemption shall be payable to the holders of the Series A Preferred Stock. On or before the Redemption Date, each holder of Series A Preferred Stock to be redeemed, unless the holder has exercised his right to convert the shares as provided in Section 4 hereof, shall surrender the certificate or certificates representing such shares to the Corporation, in the manner and at the place designated in the Redemption Notice, and thereupon the Redemption Price for such shares shall be payable to the order of the person or entity whose name appears on such certificate or certificates as the owner thereof, and each surrendered certificate shall be canceled and retired. 9

(f) Termination of Rights. If the Redemption Notice is duly given, and, if at least five days prior to the Redemption Date, the Redemption Price is either paid or made available for payment through the arrangement specified in subsection (g) below, then notwithstanding that the certificates evidencing any of the shares of Series A Preferred Stock so called or scheduled for redemption have not been surrendered, all rights with respect to such shares shall forthwith after the Redemption Date cease and terminate, except only (i) the right of the holders to receive the Redemption Price without interest upon surrender of their certificates therefor or (ii) the right to receive shares of Common Stock upon exercise of the conversion rights provided in Section 4 hereof on or before the Redemption Date. (g) Deposit of Funds. At least five days prior to the Redemption Date, the Corporation shall deposit with any bank or trust company in New York, New York, a sum equal to the aggregate Redemption Price of all shares of the Series A Preferred Stock scheduled to be redeemed or called for redemption and not yet redeemed, with irrevocable instructions and authority to the bank or trust company to pay the Redemption Price to the respective holders upon the surrender of their share certificates. The deposit shall constitute full payment for the shares of Series A Preferred Stock to the holders thereof, and from and after the date of such deposit (even if prior to the Redemption Date), the shares of Series A Preferred Stock shall be deemed to be redeemed and no longer outstanding, and the holders thereof shall cease to be shareholders with respect to such shares of Series A Preferred Stock and shall have no rights with respect thereto, except the right to receive from the bank or trust company payment of the Redemption Price of the shares of Series A Preferred Stock, without interest, upon surrender of their certificates therefor and the right to convert such shares of Series A Preferred Stock into shares of Common Stock as provided in Section 4 hereof. Any monies so deposited and unclaimed at the end of one year from the Redemption Date shall be released or repaid to the Corporation, after which time the holders of shares of Series A Preferred Stock called for redemption shall be entitled to receive payment of the Redemption Price only from the Corporation. 7. Outstanding Shares. For purposes of this Certificate of Designations, after initial issuance, all shares of Series A Preferred Stock shall be deemed outstanding except (i) from the date, or the deemed date, of surrender of certificates evidencing shares of Series A Preferred Stock, all shares of Series A Preferred Stock converted into Common Stock, (ii) from the date of registration of transfer, all shares of Series A Preferred Stock held of record by the Corporation or any subsidiary of the Corporation and (iii) any and all shares of Series A Preferred Stock held in escrow prior to delivery of such stock by the Corporation to the initial beneficial owners thereof. 8. Status of Acquired Shares. Shares of Series A Preferred Stock received upon conversion pursuant to Section 4 or redemption pursuant to Section 6 or otherwise acquired by the Corporation will be restored to the status of authorized but unissued shares of Preferred Stock, without designation as to class, and may thereafter be issued, but not as shares of Series A Preferred Stock. 10

9. Preemptive Rights. The Series A Preferred Stock is not entitled to any preemptive or subscription rights in respect of any securities of the Corporation. 10. No Amendment or Impairment. The Corporation shall not amend its Certificate of Incorporation or participate in any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action for the purpose of avoiding or seeking to avoid the observance or performance of any of the terms to be observed or performed hereunder by the Corporation, but will at all times in good faith assist in carrying out all such action as may be reasonably necessary or appropriate in order to protect the rights of the holders of the Series A Preferred Stock against impairment. 11. Severability of Provisions. Whenever possible, each provision hereof shall be interpreted in a manner as to be effective and valid under applicable law, but if any provision hereof is held to be prohibited by or invalid under applicable law, such provision shall be ineffective only to the extent of such prohibition or invalidity, without invalidating or otherwise adversely affecting the remaining provisions hereof. If a court of competent jurisdiction should determine that a provision hereof would be valid or enforceable if a period of time were extended or shortened or a particular percentage were increased or decreased, then such court may make such change as shall be necessary to render the provision in question effective and valid under applicable law. IN WITNESS WHEREOF, Manhattan Pharmaceuticals, Inc. has caused this Certificate to be signed on its behalf, as of this 31st day of October, 2003. MANHATTAN PHARMACEUTICALS, INC. By: /s/ Leonard Firestone ----------------------------------------- Name: Leonard Firestone, M.D. Title: President and Chief Executive Officer 11

EXHIBIT 4.18 THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE NOT TRANSFERABLE WITHOUT THE EXPRESS WRITTEN CONSENT OF MANHATTAN PHARMACEUTICALS, INC. (THE "COMPANY") AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES LAWS, AND MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED OR OTHERWISE TRANSFERRED IN THE ABSENCE OF A REGISTRATION STATEMENT IN EFFECT WITH RESPECT TO THE SECURITIES UNDER SUCH ACT OR AN EXEMPTION THEREFROM. ANY SUCH TRANSFER MAY ALSO BE SUBJECT TO APPLICABLE STATE SECURITIES LAWS. MANHATTAN PHARMACEUTICALS, INC. Warrant for the Purchase of Shares of Common Stock CSW No. ___S [____] Shares FOR VALUE RECEIVED, MANHATTAN PHARMACEUTICALS, INC., a Delaware corporation (the "COMPANY"), hereby certifies that MAXIM GROUP, LLC or its registered assigns (the "Holder") is entitled to purchase from the Company, subject to the provisions of this Warrant, at any time commencing from the date hereof until 5:00 p.m. (New York City time) on November 5, 2008 (the "TERMINATION DATE"), __________________________ fully paid and non-assessable shares of Common Stock, at an initial per share exercise price equal to $1.10. The shares of Common Stock or other securities or property deliverable upon such exercise are hereinafter sometimes referred to as the "WARRANT SHARES." The exercise price of a share of Common Stock in effect at any time is hereinafter sometimes referred to as the "PER SHARE EXERCISE PRICE" and the aggregate purchase price payable for the Warrant Shares hereunder is hereinafter sometimes referred to as the "AGGREGATE EXERCISE PRICE." This Warrant is one of a duly authorized issue of Warrants constituting components of units sold by the Company on the date hereof (collectively, the "WARRANTS"). 1. DEFINITIONS. "CHANGE OF CONTROL" means the (i) acquisition by an individual or legal entity or group (as defined in Rule 13d-5 of the Securities Exchange Act of 1934, as amended) of more than one-half of the voting rights or equity interests in the Company; (ii) sale, conveyance, or other disposition of all or substantially all of the assets, property or business of the Company, (iii) any reclassification of the Company's capital, or (iv) the merger into or consolidation with any other corporation or other entity (other than a wholly owned subsidiary corporation) or effectuation of any transaction or series of related transactions where holders of the Company's voting securities prior to such transaction or series of transactions fail to continue to hold at least 50% of the voting power of the Company. 1

"COMMON STOCK" means (except where the context otherwise indicates) the Common Stock, $0.001 par value per share, of the Company as constituted on the date hereof, and any capital stock into which such Common Stock may thereafter be changed or converted, and shall also include (i) capital stock of the Company of any other class (regardless of how denominated) issued to the holders of shares of Common Stock upon any reclassification thereof which is also not preferred as to dividends or assets on liquidation over any other class of stock of the Company and which is not subject to redemption and (ii) shares of common stock of any successor or acquiring corporation received by or distributed to the holders of Common Stock of the Company in the circumstances contemplated by Section 5.3. 2. EXERCISE OF WARRANT. (a) This Warrant may be exercised in whole or in part, at any time by the Holder commencing upon the date hereof and prior to the Termination Date: (i) by presentation and surrender of this Warrant (with the subscription form at the end hereof duly executed) at the address set forth in Section 11 hereof, together with payment, by certified or official bank check payable to the order of the Company, of the Aggregate Exercise Price or the proportionate part thereof if exercised in part; or (ii) by the surrender of this Warrant (with the cashless exercise form at the end hereof duly executed) (a "Cashless Exercise") at the address set forth in Section 11 hereof. Such presentation and surrender shall be deemed a waiver of the Holder's obligation to pay the Aggregate Exercise Price, or the proportionate part thereof if this Warrant is exercised in part. In the event of a Cashless Exercise, the Holder shall exchange this Warrant for that number of Warrant Shares subject to such Cashless Exercise multiplied by a fraction, the numerator of which shall be the difference between (A) the last sale price of the Common Stock on the trading day prior to such date or, in case no such reported sales take place on such day, the average of the last reported bid and asked prices of the Common Stock on such day, in either case on the principal national securities exchange on which the Common Stock is admitted to trading or listed, or if not listed or admitted to trading on any such exchange, the representative closing sale price of the Common Stock as reported by the National Association of Securities Dealers, Inc. Automated Quotations System ("NASDAQ"), or other similar organization if NASDAQ is no longer reporting such information, or, if the Common Stock is not reported on NASDAQ, the high per share sale price for the Common Stock in the over-the-counter market as reported by the National Quotation Bureau or similar organization, or if not so available, the fair market value of the Common Stock as determined in good faith by the Board of Directors (the "Current Market Price") and (B) the Per Share Exercise Price, and the denominator of which shall be the then Current Market Price. For purposes of any computation under this Section 2(a), the then Current Market Price shall be based on the trading day immediately prior to the Cashless Exercise. 2

(b) If this Warrant is exercised in part only, the Company shall, upon presentation of this Warrant upon such exercise, execute and deliver (with the certificate for the Warrant Shares purchased) a new Warrant evidencing the rights of the Holder hereof to purchase the balance of the Warrant Shares purchasable hereunder upon the same terms and conditions as herein set forth. Upon proper exercise of this Warrant, the Company promptly shall deliver certificates for the Warrant Shares to the Holder duly legended as authorized by the subscription form together with cash in lieu of any fraction of a share, as hereinafter provided, but, in any event, within three (3) business days after such exercise. No fractional shares shall be issued upon exercise of this Warrant. With respect to any fraction of a share called for upon exercise hereof, the Company shall pay to the Holder an amount in cash equal to such fraction multiplied by the Current Market Price of one (1) share of Common Stock. The stock certificate or certificates so delivered shall be, to the extent possible, in such denomination or denominations as the Holder shall request in the notice and shall be registered in the name of the Holder or such other name as shall be designated by the Holder. This Warrant shall be deemed to have been exercised and such certificate or certificates shall be deemed to have been issued, and the Holder or any other person so designated to be named therein shall be deemed to have become a Holder of record of such shares for all purposes, as of the date when the notice, together with the payment of the applicable exercise price and this Warrant, is received by the Company as described above. 3. RESERVATION OF WARRANT SHARES; FULLY PAID SHARES; TAXES. The Company hereby undertakes until expiration of this Warrant to reserve for issuance or delivery upon exercise of this Warrant, such number of shares of the Common Stock as shall be required for issuance and/or delivery upon exercise of this Warrant in full in accordance with the terms hereof, and agrees that all Warrant Shares so issued and/or delivered shall be validly issued, fully paid and non-assessable and not subject to any preemptive rights, and further agrees to pay all taxes and charges that may be imposed upon such issuance and/or delivery. 4. REGISTRATION UNDER SECURITIES ACT OF 1933, AS AMENDED. The Holder of this Warrant shall be entitled to registration rights with respect to the Warrant Shares to the same extent and on the same terms as those provided to investors pursuant to Article V of the Subscription Agreement (the "Subscription Agreement") dated October ____, 2003 between the Company and purchasers of the Company's Series A Convertible Preferred Stock. If the Holder is not a party to the Subscription Agreement, by acceptance of this Warrant the Holder agrees to comply with provisions of Article V thereof to the same extent as if it were a party thereto. 5. ADJUSTMENTS. The number of shares of Common Stock for which this Warrant is exercisable, and the price at which such shares may be purchased upon exercise of this Warrant, shall be subject to adjustment from time to time as set forth in this Section 5. The Company shall give the Holder notice of any event described below which requires an adjustment pursuant to this Section 5 in accordance with Sections 6.1 and 6.2. 5.1 Stock Dividends, Subdivisions and Combinations. If at any time while this Warrant is outstanding the Company shall: i. take a record of the holders of its Common Stock for the purpose of entitling them to receive a dividend payable in, or other distribution of, additional shares of Common Stock, ii. subdivide its outstanding shares of Common Stock into a larger number of shares of Common Stock, or 3

iii. combine its outstanding shares of Common Stock into a smaller number of shares of Common Stock, then: (1) the number of shares of Common Stock acquirable upon exercise of this Warrant immediately after the occurrence of any such event shall be adjusted to equal the number of shares of Common Stock which a record holder of the same number of shares of Common Stock that would have been acquirable under this Warrant immediately prior to the occurrence of such event would own or be entitled to receive after the happening of such event, and (2) the Per Share Exercise Price shall be adjusted to equal: (A) the Per Share Exercise Price in effect immediately prior to the occurrence of such event multiplied by the number of shares of Common Stock into which this Warrant is exercisable immediately prior to the adjustment, divided by (B) the number of shares of Common Stock into which this Warrant is exercisable immediately after such adjustment. Any adjustment made pursuant to clause (i) of this paragraph shall become effective immediately after the record date for the determination of shareholders entitled to receive such dividend or distribution, and any adjustment pursuant to clauses (ii) or (iii) of this paragraph shall become effective immediately after the effective date of such subdivision or combination. 5.2 Fractional Interests. In computing adjustments under this Section 5, all calculations shall be made to the nearest 1/100th of a share. 5.3 Reorganization, Reclassification, Merger, Consolidation or Disposition of Assets. (a) If, prior to the Termination Date, there shall occur a Change of Control and, pursuant to the terms of such Change of Control, shares of common stock of the successor or acquiring corporation, or any cash, shares of stock or other securities or property of any nature whatsoever (including warrants or other subscription or purchase rights) in addition to or in lieu of common stock of the successor or acquiring corporation ("Other Property"), are to be received by or distributed to the holders of Common Stock of the Company, then the Holder of this Warrant shall have the right thereafter to receive, upon the exercise of the Warrant, the number of shares of common stock of the successor or acquiring corporation or of the Company, if it is the surviving corporation, and the Other Property receivable upon or as a result of such Change of Control by a holder of the number of shares of Common Stock into which this Warrant is exercisable immediately prior to such event. 4

(b) In case of any such Change of Control, the successor or acquiring corporation (if other than the Company) shall expressly assume the due and punctual observance and performance of each and every covenant and condition contained in this Warrant to be performed and observed by the Company and all of the Company's obligations and liabilities hereunder, subject to such modifications as may be deemed appropriate (as determined in good faith by resolution of the Board of Directors of the Company) in order to provide for adjustments of shares of the Common Stock into which this Warrant is exercisable which shall be as nearly equivalent as practicable to the adjustments provided for in this Section 5. 5.4 Other Action Affecting Common Stock. In case at any time or from time to time the Company shall take any action in respect of its Common Stock, then, unless such action will not have a materially adverse effect upon the rights of the holder of this Warrant, the number of shares of Common Stock or other stock into which this Warrant is exercisable and/or the purchase price thereof shall be adjusted in such manner as may be equitable in the circumstances. 5.5 Certain Limitations. Notwithstanding anything herein to the contrary, the Company agrees not to enter into any transaction which, by reason of any adjustment hereunder, would cause the Per Share Exercise Price to be less than the par value per share of Common Stock. 6. NOTICES TO WARRANT HOLDERS. 6.1. Certificate as to Adjustments. Upon the occurrence of each adjustment or readjustment of the Per Share Exercise Price, or the number of shares of Common Stock and the amount, if any, of other property which at the time would be received upon exercise of the Warrants owned by such Holder, the Company, at its expense, shall promptly compute such adjustment or readjustment in accordance with the terms hereof and prepare and furnish to the Holder of this Warrant a certificate setting forth such adjustment or readjustment and showing in detail the facts upon which such adjustment or readjustment is based. The Company shall, upon the written request at any time of the Holder of this Warrant, furnish or cause to be furnished to such Holder a like certificate setting forth (i) such adjustments and readjustments, (ii) the Per Share Exercise Price at the time in effect and (iii) the number of shares of Common Stock and the amount, if any, of other property which at the time would be received upon the exercise of Warrants owned by such Holder. 6.2. Notice of Corporate Action. If at any time: (a) the Company shall take a record of the holders of its Common Stock for the purpose of entitling them to receive a dividend or other distribution, or any right to subscribe for or purchase any evidences of its indebtedness, any shares of stock of any class or any other securities or property, or to receive any other right, or (b) there shall be any capital reorganization of the Company, any reclassification or recapitalization of the capital stock of the Company or any consolidation or merger of the Company with, or any sale, transfer or other disposition of all or substantially all the property, assets or business of the Company to, another corporation or other person, or 5

(c) there shall be a voluntary or involuntary dissolution, liquidation or winding up of the Company; then, in any one or more of such cases, the Company shall give to the Holder (i) at least 15 days' prior written notice of the record date selected for such dividend, distribution or right or for determining rights to vote in respect of any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, dissolution, liquidation or winding up, and (ii) in the case of any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, dissolution, liquidation or winding up, at least 15 days' prior written notice of the date when the same shall take place. Such notice in accordance with the foregoing clause also shall specify (i) the date on which any such record is to be taken for the purpose of such dividend, distribution or right, the date on which the holders of Common Stock shall be entitled to any such dividend, distribution or right, and the amount and character thereof, and (ii) the date on which any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, dissolution, liquidation or winding up is to take place and the time, if any such time is to be fixed, as of which the holders of Common Stock shall be entitled to exchange their shares of Common Stock for securities or other property deliverable upon such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, dissolution, liquidation or winding up. Each such written notice shall be sufficiently given if addressed to the Holder at the last address of the Holder appearing on the books of the Company and delivered in accordance with Section 11. The failure to give any notice required by this Section 6.2 shall not invalidate any such corporate action. 6.3. Notice to Stockholders. The Holder shall be entitled to the same rights to receive notice of corporation action as any holder of Common Stock. 7. NO IMPAIRMENT. The Company shall not by any action, including, without limitation, amending its certificate of incorporation or through any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such actions as may be necessary or appropriate to protect the rights of the Holder against impairment. Without limiting the generality of the foregoing, the Company will (a) not increase the par value of any shares of Common Stock receivable upon the exercise of this Warrant above the amount payable therefor upon such exercise immediately prior to such increase in par value, (b) take all such action as may be necessary or appropriate in order that the Company may validly and legally issue fully paid and nonassessable shares of Common Stock upon the exercise of this Warrant, and (c) use its best efforts to obtain all such authorizations, exemptions or consents from any public regulatory body having jurisdiction thereof as may be necessary to enable the Company to perform its obligations under this Warrant. Upon the request of the Holder, the Company will at any time during the period this Warrant is outstanding acknowledge in writing, in form satisfactory to the Holder, the continuing validity of this Warrant and the obligations of the Company hereunder. 6

8. LIMITED TRANSFERABILITY. (a) The Holder represents that by accepting this Warrant it understands that this Warrant and any securities obtainable upon exercise of this Warrant have not been registered for sale under Federal or state securities laws and are being offered and sold to the Holder pursuant to one or more exemptions from the registration requirements of such securities laws. In the absence of an effective registration of such securities or an exemption therefrom, any certificates for such securities shall bear the legend set forth on the first page hereof. The Holder understands that it must bear the economic risk of its investment in this Warrant and any securities obtainable upon exercise of this Warrant for an indefinite period of time, as this Warrant and such securities have not been registered under Federal or state securities laws and therefore cannot be sold unless subsequently registered under such laws, unless an exemption from such registration is available. (b) The Holder, by its acceptance of this Warrant, represents to the Company that it is acquiring this Warrant and will acquire any securities obtainable upon exercise of this Warrant for its own account for investment and not with a view to, or for sale in connection with, any distribution thereof in violation of the Securities Act of 1933, as amended (the "Act"). The Holder agrees that this Warrant and any such securities may not be sold or otherwise transferred unless (i) a registration statement with respect to such transfer is effective under the Act and any applicable state securities laws or (ii) such sale or transfer is made pursuant to one or more exemptions from the Act. (c) This Warrant may not be sold, transferred, assigned or hypothecated for six (6) months from the date hereof except (i) to any firm or corporation that succeeds to all or substantially all of the business of Maxim Group, LLC, (ii) to any of the officers, employees, associates or affiliated companies of Maxim Group, LLC, or of any such successor firm, (iii) to any NASD member participating in the offering of the Company's Series A Convertible Preferred Stock or any officer or employee of any such NASD member or (iv) in the case of an individual, pursuant to such individual's last will and testament or the laws of descent and distribution, and is so transferable only upon the books of the Company which the Company shall cause to be maintained for such purpose. The Company may treat the registered Holder of this Warrant as it appears on the Company's books at any time as the Holder for all purposes. The Company shall permit any Holder of a Warrant or its duly authorized attorney, upon written request during ordinary business hours, to inspect and copy or make extracts from its books showing the registered Holders of Warrant. All Warrants issued upon the transfer or assignment of this Warrant will be dated the same date as this Warrant, and all rights of the holder thereof shall be identical to those of the Holder. 9. LOSS, ETC., OF WARRANT. Upon receipt of evidence satisfactory to the Company of the loss, theft, destruction or mutilation of this Warrant, and of indemnity reasonably satisfactory to the Company, if lost, stolen or destroyed, and upon surrender and cancellation of this Warrant, if mutilated, the Company shall execute and deliver to the Holder a new Warrant of like date, tenor and denomination. 10. STATUS OF HOLDER. This Warrant does not confer upon the Holder any right to vote or to consent to or receive notice as a stockholder of the Company, as such, in respect of any matters whatsoever, or any other rights or liabilities as a stockholder, prior to the exercise hereof. 11. NOTICES. No notice or other communication under this Warrant shall be effective unless, but any notice or other communication shall be effective and shall be deemed to have been given if, the same is in writing and is mailed by first-class mail, postage prepaid, addressed to: 7

If to the Holder: Maxim Group, LLC, 405 Lexington Avenue, New York, New York 10174; or If to the Company: c/o Manhattan Pharmaceuticals, Inc. 787 Seventh Avenue, 48th Floor, New York, New York 10019, Attn: Secretary 12. HEADINGS. The headings of this Warrant have been inserted as a matter of convenience and shall not affect the construction hereof. 13. APPLICABLE LAW. This Warrant shall be governed by and construed in accordance with the laws of the State of New York, without regard to principles of conflicts of law. The parties agree to settle any disputes through binding arbitration in the city, county and State of New York. 14. SUCCESSORS AND ASSIGNS. Subject to compliance with the provisions of Section 8, this Warrant and the rights evidenced hereby shall inure to the benefit of and be binding upon the successors of the Company and the successors and assigns of the Holder. The provisions of this Warrant are intended to be for the benefit of all Holders from time to time of this Warrant, and shall be enforceable by any such Holder, but nothing in this Warrant shall be construed to give any person or corporation or other entity, other than the Company and the Holder and their respective successors and assigns, any legal or equitable right, remedy or cause under this Warrant. REMAINDER OF PAGE LEFT INTENTIONALLY BLANK. SIGNATURE PAGE FOLLOWS. 8

IN WITNESS WHEREOF, the Company has caused this Warrant to be signed by its President and its corporate seal to be hereunto affixed and attested by its Secretary this 5th day of November, 2003. MANHATTAN PHARMACEUTICALS, INC. By: _________________________________ Name: Leonard Firestone, MD Title: President & CEO ATTEST: ___________________________________ Secretary 9

SUBSCRIPTION The undersigned, ___________________, pursuant to the provisions of the foregoing Warrant, hereby elects to exercise the within Warrant to the extent of purchasing ____________________ shares of Common Stock thereunder and hereby makes payment of $___________ by certified or official bank check in payment of the exercise price therefor. The undersigned hereby represents and warrants to the Company that the undersigned is acquiring the shares of the Company's Common Stock pursuant to exercise of the within Warrant for investment purposes only. The undersigned hereby further acknowledges that the undersigned understands that such shares (a) have not been registered under the Securities Act of 1933, as amended, and are being issued to the undersigned by the Company in reliance upon the foregoing representation and warranty and (b) may not be resold except in accordance with the requirements of the Act, including Rule 144 thereunder, if applicable. The undersigned further consents to the placing of a legend on the certificates for the shares being purchased to the foregoing effect. Dated:_______________ Signature:____________________ Address:______________________ ASSIGNMENT FOR VALUE RECEIVED _______________ hereby sells, assigns and transfers unto ____________________ the foregoing Warrant and all rights evidenced thereby, and does irrevocably constitute and appoint _____________________, attorney, to transfer said Warrant on the books of Manhattan Pharmaceuticals, Inc. Dated:_______________ Signature:____________________ Address:______________________ 10

CASHLESS EXERCISE The undersigned ___________________, pursuant to the provisions of the foregoing Warrant, hereby elects to exchange its Warrant for ___________________ shares of Common Stock, par value $.001 per share, of Manhattan Pharmaceuticals, Inc. pursuant to the Cashless Exercise provisions of the Warrant. Dated:_______________ Signature:____________________ Address:______________________ PARTIAL ASSIGNMENT FOR VALUE RECEIVED _______________ hereby assigns and transfers unto ____________________ the right to purchase _______ shares of the Common Stock, no par value per share, of Pain Management, Inc. covered by the foregoing Warrant, and a proportionate part of said Warrant and the rights evidenced thereby, and does irrevocably constitute and appoint ____________________, attorney, to transfer that part of said Warrant on the books of Manhattan Pharmaceuticals, Inc. Dated:_______________ Signature:____________________ Address:______________________ 11

EXHIBIT 5.1 January 13, 2004 Manhattan Pharmaceuticals, Inc. 787 Seventh Avenue, 48th Floor New York, NY 10019 RE: Registration Statement on Form SB-2 Gentlemen: We have acted as counsel to Manhattan Pharmaceuticals, Inc., a Delaware corporation (the "Company"), in connection with the preparation of a registration statement on Form SB-2 (the "Registration Statement") to be filed by the Company with the Securities and Exchange Commission on or about January 13, 2004 relating to the registration under the Securities Act of 1933, as amended (the "Securities Act"), of the resale by the selling stockholders identified in the Registration Statement of an aggregate of 21,029,163 shares of the Company's common stock, $.001 par value per share, consisting of 7,591,703 issued and outstanding shares (the "Shares") of common stock, 10,000,000 shares of common stock issuable upon conversion of the Series A Convertible Preferred Stock (the "Conversion Shares") and 3,437,460 shares (the "Warrant Shares") of common stock issuable upon the exercise of various outstanding warrants (the "Warrants"). This opinion is being furnished in accordance with the requirements of Item 601(b)(5) of Regulation S-B under the Securities Act. In connection with the rendering of this opinion, we have examined and are familiar with originals or copies, certified or otherwise identified to our satisfaction, of (i) the Registration Statement; (ii) the Certificate of Incorporation and the Bylaws of the Company, as amended, each as currently in effect; (iii) certain resolutions adopted by the Board of Directors of the Company relating to the issuance of the shares covered by the Registration Statement, the preparation and filing of the Registration Statement and certain related matters; and (iv) such other documents, certificates and records as we deemed necessary or appropriate as a basis for the opinions expressed herein. In our examination, we have assumed the genuineness of all signatures, the legal capacity of natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as certified, conformed or photostatic copies and the authenticity of the originals of such copies. As to any facts material to the opinions expressed herein which we have not independently established or verified, we have relied upon statements and representations of officers and other representatives of the Company and others. We are attorneys licensed to practice in the State of Minnesota and the opinions expressed herein are limited to the laws of the State of Minnesota and the federal securities laws of the United States. Based upon and subject to the limitations, qualifications, exceptions and assumptions set forth herein, it is our opinion that: 1. The Shares have been duly authorized and are validly issued, fully paid and nonassessable. 2. The Warrant Shares have been duly authorized and, when issued against payment of the requisite exercise price, will be validly issued, fully paid and nonassessable.

Manhattan Pharmaceuticals, Inc. January 13, 2004 Page 2 3. The Conversion Shares have been duly authorized and, when issued upon conversion of the Series A Convertible Preferred Stock in accordance with the terms of such convertible stock, will be validly issued, fully paid and non-assessable. We hereby consent to the filing of this opinion as an exhibit to the Registration Statement. We also consent to the reference to our name under the caption "Validity of Common Stock" in the prospectus filed as part of the Registration Statement. Very truly yours, /s/ MASLON EDELMAN BORMAN & BRAND, LLP

EXHIBIT 10.10 EMPLOYMENT AGREEMENT AGREEMENT (the "AGREEMENT"), dated as of January 2, 2004, by and between MANHATTAN PHARMACEUTICALS, INC., a Delaware corporation with principal executive offices at 787 Seventh Avenue, 48th Floor, New York, NY 10019 (the "COMPANY"), and DR. LEONARD FIRESTONE, residing at Backbone Road, Sewickley Heights, PA 15143-0408 (the "EXECUTIVE"). W I T N E S S E T H: WHEREAS, the Company desires to continue to employ the Executive as President and Chief Executive Officer of the Company, and the Executive desires to continue to serve the Company in those capacities, upon the terms and subject to the conditions contained in this Agreement; NOW, THEREFORE, in consideration of the mutual covenants and agreements herein contained, the parties hereto hereby agree as follows: 1. Employment. (a) Services. The Executive will be employed by the Company as its President and Chief Executive Officer. The Executive will report to the Board of Directors of the Company (the "Board") and shall perform such duties as are consistent with your position as President and Chief Executive Officer (the "Services"). The Executive agrees to perform such duties faithfully, to devote all of his working time, attention and energies to the business of the Company, and while he remains employed, not to engage in any other business activity that is in conflict with your duties and obligations to the Company. (b) Acceptance. Executive hereby accepts such employment and agrees to render the Services. 2. Term. The Executive's employment under this Agreement (the "Term") shall commence as of the Effective Date (as hereinafter defined) and shall continue for a term of one (1) year, unless sooner terminated pursuant to Section 9 of this Agreement. Notwithstanding anything to the contrary contained herein, the provisions of this Agreement governing protection of Confidential Information shall continue in effect as specified in Section 6 hereof and survive the expiration or termination hereof. The Term may be extended for additional one (1) year periods upon mutual written consent of the Executive and the Board. 3. Best Efforts; Place of Performance. (a) The Executive shall devote substantially all of his business time, attention and energies to the business and affairs of the Company and shall use his best efforts to advance the best interests of the Company and shall not during the Term be actively engaged in any other business activity, whether or not such business activity is pursued for gain, profit or other pecuniary advantage, that will interfere with the performance by the Executive of his duties hereunder or the Executive's availability to perform such duties or that will adversely affect, or negatively reflect upon, the Company. 1

(b) The duties to be performed by the Executive hereunder shall be performed primarily at the office of the Company in New York, New York, subject to reasonable travel requirements on behalf of the Company, or such other place as the Board may reasonably designate. 4. Directorship. The Company shall use its best efforts to cause the Executive to be elected as a member of its Board of Directors throughout the Term and shall include him in the management slate for election as a director at every stockholders meeting during the Term at which his term as a director would otherwise expire. The Executive agrees to accept election, and to serve during the Term, as director of the Company, without any compensation therefor other than as specified in this Agreement. 5. Compensation. As full compensation for the performance by the Executive of his duties under this Agreement, the Company shall pay the Executive as follows: (a) Base Salary. The Company shall pay Executive a salary (the "Base Salary") equal to Three Hundred Twenty Five Thousand Dollars ($325,000) per year. Payment shall be made semi-monthly, on the last day of each calendar month. (b) Guaranteed Bonus. The Company shall pay the Executive a bonus (the "GUARANTEED BONUS") of Seventy Five Thousand ($75,000) within 30 days following each anniversary of the date of this Agreement during the Term, provided that the Executive is employed hereunder on such anniversary date. The Board of Directors of the Company shall annually review the Guaranteed Bonus to determine whether an increase in the amount thereof is warranted. (c) Discretionary Bonus. At the sole discretion of the Board of Directors of the Company, the Executive shall receive an additional annual bonus (the "DISCRETIONARY BONUS") in an amount equal to up to 100% of his Base Salary, based upon his performance on behalf of the Company during the prior year. Factors to be considered by the Board of Directors shall include, but not be limited to, significant growth in the Company's market capitalization, the liquidity and performance of the Company's Common Stock, as well as any financing received by the Company from third parties introduced to the Company by the Executive. The Discretionary Bonus shall be payable either as a lump-sum payment or in installments as determined by the Board of Directors of the Company in its sole discretion. In addition, the Board of Directors of the Company shall annually review the Bonus to determine whether an increase in the amount thereof is warranted. (d) Incentive Bonus. The Company shall pay the Executive periodic milestone based incentive bonuses (each an "INCENTIVE BONUS") as follows: (i) $25,000 upon the successful completion of a Phase I clinical trial of oleoyl-estrone anywhere in the world under the applicable regulatory permit; (ii) $25,000 upon the successful completion of a Phase I clinical trial of lingual spray propofol anywhere in the world under the applicable regulatory permit; 2

(iii) $50,000 upon the successful completion of a Phase I clinical trial of oleoyl-estrone in the United States under a company sponsored Investigational New Drug Application ("IND"); (iv) $50,000 upon the successful completion of a Phase I clinical trial of lingual spray propofol in the United States under a company sponsored IND; and (v) $50,000 on the date on which the Company's Common Stock first trades on the American Stock Exchange, the Nasdaq Smallcap Market or Nsdaq National Market. For purposes of this Agreement, successful completion of a clinical trial shall mean receipt by the Company of a finalized database of results from such clinical trial. (e) Withholding. The Company shall withhold all applicable federal, state and local taxes and social security and such other amounts as may be required by law from all amounts payable to the Executive under this Section 5. (f) Stock Options. As additional compensation for the services to be rendered by the Executive pursuant to this Agreement, the Company shall grant the Executive stock options ("STOCK OPTIONS") to purchase 600,000 shares of Common Stock of the Company representing two and one half percent (2.5%) of the outstanding Common Stock of the Company. The Stock Options shall be governed by the Company's 2003 Stock Option Plan and shall vest, if at all, in two equal installments on January 1, 2005 and January 1, 2006 of this Agreement, subject in each case to the provisions of Section 10 below. In connection with such grant, the Executive shall enter into the Company's standard stock option agreement which will incorporate the foregoing vesting schedule and the Stock Option related provisions contained in Section 10 below. The Board of Directors of the Company shall annually review the number of Stock Options granted to the Executive to determine whether an increase in the number thereof is warranted. (g) Expenses. The Company shall reimburse the Executive for all normal, usual and necessary expenses incurred by the Executive in furtherance of the business and affairs of the Company, including reasonable travel and entertainment, upon timely receipt by the Company of appropriate vouchers or other proof of the Executive's expenditures and otherwise in accordance with any expense reimbursement policy as may from time to time be adopted by the Company. (h) Other Benefits. The Executive shall be entitled to all rights and benefits for which he shall be eligible under any benefit or other plans (including, without limitation, dental, medical, medical reimbursement and hospital plans, pension plans, employee stock purchase plans, profit sharing plans, bonus plans and other so-called "fringe" benefits) as the Company shall make available to its senior executives from time to time. In addition, the Company shall reimburse the Executives for his reasonable medical licensing fees and other professional dues. Until such time as the Company implements a pension or retirement plan on behalf of its Executives, Company agrees to reimburse Executive an amount equal to the maximum contribution permitted by law to the Executive's self-directed IRA pension plan each year of the Term, but in no event greater than $10,000 per annum. In addition, Company agrees to reimburse executive for reasonable personal disability coverage for each year of the Term. 3

(i) Vacation. The Executive shall, during the Term, be entitled to a vacation of four (4) weeks per annum, in addition to holidays observed by the Company. The Executive shall not be entitled to carry any vacation forward to the next year of employment and shall not receive any compensation for unused vacation days. 6. Confidential Information and Inventions. (a) The Executive recognizes and acknowledges that in the course of his duties he is likely to receive confidential or proprietary information owned by the Company, its affiliates or third parties with whom the Company or any such affiliates has an obligation of confidentiality. Accordingly, during and after the Term, the Executive agrees to keep confidential and not disclose or make accessible to any other person or use for any other purpose other than in connection with the fulfillment of his duties under this Agreement, any Confidential and Proprietary Information (as defined below) owned by, or received by or on behalf of, the Company or any of its affiliates. "Confidential and Proprietary Information" shall include, but shall not be limited to, confidential or proprietary scientific or technical information, data, formulas and related concepts, business plans (both current and under development), client lists, promotion and marketing programs, trade secrets, or any other confidential or proprietary business information relating to development programs, costs, revenues, marketing, investments, sales activities, promotions, credit and financial data, manufacturing processes, financing methods, plans or the business and affairs of the Company or of any affiliate or client of the Company. The Executive expressly acknowledges the trade secret status of the Confidential and Proprietary Information and that the Confidential and Proprietary Information constitutes a protectable business interest of the Company. The Executive agrees: (i) not to use any such Confidential and Proprietary Information for himself or others; and (ii) not to take any Company material or reproductions (including but not limited to writings, correspondence, notes, drafts, records, invoices, technical and business policies, computer programs or disks) thereof from the Company's offices at any time during his employment by the Company, except as required in the execution of the Executive's duties to the Company. The Executive agrees to return immediately all Company material and reproductions (including but not limited, to writings, correspondence, notes, drafts, records, invoices, technical and business policies, computer programs or disks) thereof in his possession to the Company upon request and in any event immediately upon termination of employment. (b) Except with prior written authorization by the Company, the Executive agrees not to disclose or publish any of the Confidential and Proprietary Information, or any confidential, scientific, technical or business information of any other party to whom the Company or any of its affiliates owes an obligation of confidence, at any time during or after his employment with the Company. (c) The Executive agrees that all inventions, discoveries, improvements and patentable or copyrightable works ("INVENTIONS") initiated, conceived or made by him, either alone or in conjunction with others, during the Term shall be the sole property of the Company to the maximum extent permitted by applicable law and, to the extent permitted by law, shall be "works made for hire" as that term is defined in the United States Copyright Act (17 U.S.C.A., Section 101). The Company shall be the sole owner of all patents, copyrights, trade secret rights, and other intellectual property or other rights in connection therewith. The Executive hereby assigns to the Company all right, title and interest he may have or acquire in all such Inventions; provided, however, that the Board of Directors of the Company may in its sole discretion agree to waive the Company's rights pursuant to this Section 6(c) with respect to any Invention that is not directly or indirectly related to the Company's business. The Executive further agrees to assist the Company in every proper way (but at the Company's expense) to obtain and from time to time enforce patents, copyrights or other rights on such Inventions in any and all countries, and to that end the Executive will execute all documents necessary: 4

(i) to apply for, obtain and vest in the name of the Company alone (unless the Company otherwise directs) letters patent, copyrights or other analogous protection in any country throughout the world and when so obtained or vested to renew and restore the same; and (ii) to defend any opposition proceedings in respect of such applications and any opposition proceedings or petitions or applications for revocation of such letters patent, copyright or other analogous protection. (d) The Executive acknowledges that while performing the services under this Agreement the Executive may locate, identify and/or evaluate patented or patentable inventions having commercial potential in the fields of pharmacy, pharmaceutical, biotechnology, healthcare, technology and other fields which may be of potential interest to the Company or one of its affiliates (the "THIRD PARTY INVENTIONS"). The Executive understands, acknowledges and agrees that all rights to, interests in or opportunities regarding, all Third-Party Inventions identified by the Company, any of its affiliates or either of the foregoing persons' officers, directors, employees (including the Executive), agents or consultants during the Employment Term shall be and remain the sole and exclusive property of the Company or such affiliate and the Executive shall have no rights whatsoever to such Third-Party Inventions and will not pursue for himself or for others any transaction relating to the Third-Party Inventions which is not on behalf of the Company. (e) The provisions of this Section 6 shall survive any termination of this Agreement. 7. Non-Competition, Non-Solicitation and Non-Disparagement. (a) The Executive understands and recognizes that his services to the Company are special and unique and that in the course of performing such services the Executive will have access to and knowledge of Confidential and Proprietary Information (as defined in Section 6) and the Executive agrees that, during the Term and for a period of twelve (12) months thereafter, he shall not in any manner, directly or indirectly, on behalf of himself or any person, firm, partnership, joint venture, corporation or other business entity ("PERSON"), enter into or engage in any business which is engaged in any business directly or indirectly competitive with the business of the Company, either as an individual for his own account, or as a partner, joint venturer, owner, executive, employee, independent contractor, principal, agent, consultant, salesperson, officer, director or shareholder of a Person in a business competitive with the Company within the geographic area of the Company's business, which is deemed by the parties hereto to be worldwide. The Executive acknowledges that, due to the unique nature of the Company's business, the loss of any of its clients or business flow or the improper use of its Confidential and Proprietary Information could create significant instability and cause substantial damage to the Company and its affiliates and therefore the Company has a strong legitimate business interest in protecting the continuity of its business interests and the restriction herein agreed to by the Executive narrowly and fairly serves such an important and critical business interest of the Company. For purposes of this Agreement, the Company shall be deemed to be actively engaged on the date hereof in the development of (a) oleoyl-estrone for the treatment of obesity and overweight disease and (b) novel application drug delivery systems for propofol, and in the future in any other business in which it actually devotes substantive resources to study, develop or pursue. Notwithstanding the foregoing, nothing contained in this Section 7(a) shall be deemed to prohibit the Executive from (i) acquiring or holding, solely for investment, publicly traded securities of any corporation, some or all of the activities of which are competitive with the business of the Company so long as such securities do not, in the aggregate, constitute more than three percent (3%) of any class or series of outstanding securities of such corporation. 5

(b) During the Term and for a period of 12 months thereafter, the Executive shall not, directly or indirectly, without the prior written consent of the Company: (i) solicit or induce any employee of the Company or any of its affiliates to leave the employ of the Company or any such affiliate; or hire for any purpose any employee of the Company or any affiliate or any employee who has left the employment of the Company or any affiliate within one year of the termination of such employee's employment with the Company or any such affiliate or at any time in violation of such employee's non-competition agreement with the Company or any such affiliate; or (ii) solicit or accept employment or be retained by any Person who, at any time during the term of this Agreement, was an agent, client or customer of the Company or any of its affiliates where his position will be related to the business of the Company or any such affiliate; or (iii) solicit or accept the business of any agent, client or customer of the Company or any of its affiliates with respect to products, services or investments similar to those provided or supplied by the Company or any of its affiliates. (c) The Company and the Executive each agree that both during the Term and at all times thereafter, neither party shall directly or indirectly disparage, whether or not true, the name or reputation of the other party or any of its affiliates, including but not limited to, any officer, director, employee or shareholder of the Company or any of its affiliates. (d) In the event that the Executive breaches any provisions of Section 6 or this Section 7 or there is a threatened breach, then, in addition to any other rights which the Company may have, the Company shall (i) be entitled, without the posting of a bond or other security, to injunctive relief to enforce the restrictions contained in such Sections and (ii) have the right to require the Executive to account for and pay over to the Company all compensation, profits, monies, accruals, increments and other benefits (collectively "BENEFITS") derived or received by the Executive as a result of any transaction constituting a breach of any of the provisions of Sections 6 or 7 and the Executive hereby agrees to account for and pay over such Benefits to the Company. (e) Each of the rights and remedies enumerated in Section 7(d) shall be independent of the others and shall be in addition to and not in lieu of any other rights and remedies available to the Company at law or in equity. If any of the covenants contained in this Section 7, or any part of any of them, is hereafter construed or adjudicated to be invalid or unenforceable, the same shall not affect the remainder of the covenant or covenants or rights or remedies which shall be given full effect without regard to the invalid portions. If any of the covenants contained in this Section 7 is held to be invalid or unenforceable because of the duration of such provision or the area covered thereby, the parties agree that the court making such determination shall have the power to reduce the duration and/or area of such provision and in its reduced form such provision shall then be enforceable. No such holding of invalidity or unenforceability in one jurisdiction shall bar or in any way affect the Company's right to the relief provided in this Section 7 or otherwise in the courts of any other state or jurisdiction within the geographical scope of such covenants as to breaches of such covenants in such other respective states or jurisdictions, such covenants being, for this purpose, severable into diverse and independent covenants. 6

(f) In the event that an actual proceeding is brought in equity to enforce the provisions of Section 6 or this Section 7, the Executive shall not urge as a defense that there is an adequate remedy at law nor shall the Company be prevented from seeking any other remedies which may be available. The Executive agrees that he shall not raise in any proceeding brought to enforce the provisions of Section 6 or this Section 7 that the covenants contained in such Sections limit his ability to earn a living. (g) The provisions of this Section 7 shall survive any termination of this Agreement. 8. Representations and Warranties by the Executive. The Executive hereby represents and warrants to the Company as follows: (i) Neither the execution or delivery of this Agreement nor the performance by the Executive of his duties and other obligations hereunder violate or will violate any statute, law, determination or award, or conflict with or constitute a default or breach of any covenant or obligation under (whether immediately, upon the giving of notice or lapse of time or both) any prior employment agreement, contract, or other instrument to which the Executive is a party or by which he is bound. (ii) The Executive has the full right, power and legal capacity to enter and deliver this Agreement and to perform his duties and other obligations hereunder. This Agreement constitutes the legal, valid and binding obligation of the Executive enforceable against him in accordance with its terms. No approvals or consents of any persons or entities are required for the Executive to execute and deliver this Agreement or perform his duties and other obligations hereunder. 9. Termination. The Executive's employment hereunder shall be terminated upon the Executive's death and may be terminated as follows: (a) The Executive's employment hereunder may be terminated by the Board of Directors of the Company for Cause. Any of the following actions by the Executive shall constitute "CAUSE": (i) The willful failure, disregard or refusal by the Executive to perform his duties hereunder; (ii) Any willful, intentional or grossly negligent act by the Executive having the effect of injuring, in a material way (whether financial or otherwise and as determined in good-faith by a majority of the Board of Directors of the Company), the business or reputation of the Company or any of its affiliates, including but not limited to, any officer, director, executive or shareholder of the Company or any of its affiliates; 7

(iii) Willful misconduct by the Executive in respect of the duties or obligations of the Executive under this Agreement, including, without limitation, insubordination with respect to directions received by the Executive from the Board of Directors of the Company; (iv) The Executive's indictment of any felony or a misdemeanor involving moral turpitude (including entry of a nolo contendere plea); (v) The determination by the Company, after a reasonable and good-faith investigation by the Company following a written allegation by another employee of the Company, that the Executive engaged in some form of harassment prohibited by law (including, without limitation, age, sex or race discrimination), unless the Executive's actions were specifically directed by the Board of Directors of the Company; (vi) Any misappropriation or embezzlement of the property of the Company or its affiliates (whether or not a misdemeanor or felony); (vii) Breach by the Executive of any of the provisions of Sections 6, 7 or 8 of this Agreement; and (viii) Breach by the Executive of any provision of this Agreement other than those contained in Sections 6, 7 or 8 which is not cured by the Executive within thirty (30) days after notice thereof is given to the Executive by the Company. (b) The Executive's employment hereunder may be terminated by the Board of Directors of the Company due to the Executive's Disability. For purposes of this Agreement, a termination for "DISABILITY" shall occur (i) when the Board of Directors of the Company has provided a written termination notice to the Executive supported by a written statement from a reputable independent physician to the effect that the Executive shall have become so physically or mentally incapacitated as to be unable to resume, within the ensuing twelve (12) months, his employment hereunder by reason of physical or mental illness or injury, or (ii) upon rendering of a written termination notice by the Board of Directors of the Company after the Executive has been unable to substantially perform his duties hereunder for 90 or more consecutive days, or more than 120 days in any consecutive twelve month period, by reason of any physical or mental illness or injury. For purposes of this Section 9(b), the Executive agrees to make himself available and to cooperate in any reasonable examination by a reputable independent physician retained by the Company. (c) The Executive's employment hereunder may be terminated by the Board of Directors of the Company (or its successor) upon the occurrence of a Change of Control. For purposes of this Agreement, "CHANGE OF CONTROL" means (i) the acquisition, directly or indirectly, following the date hereof by any person (as such term is defined in Section 13(d) and 14(d)(2) of the Securities Exchange Act of 1934, as amended), in one transaction or a series of related transactions, of securities of the Company representing in excess of fifty percent (50%) or more of the combined voting power of the Company's then outstanding securities if such person or his or its affiliate(s) do not own in excess of 50% of such voting power on the date of this Agreement, or (ii) the future disposition by the Company (whether direct or indirect, by sale of assets or stock, merger, consolidation or otherwise) of all or substantially all of its business and/or assets in one transaction or series of related transactions (other than a merger effected exclusively for the purpose of changing the domicile of the Company). 8

(d) The Executive's employment hereunder may be terminated by the Executive for Good Reason. For purposes of this Agreement, "GOOD REASON" shall mean any of the following: (i) the assignment to the Executive of duties inconsistent with the Executive's position, duties, responsibilities, titles or offices as described herein; (ii) any material reduction by the Corporation of the Executive's duties and responsibilities; or (iii) any reduction by the Corporation of the Executive's compensation or benefits payable hereunder (it being understood that a reduction of benefits applicable to all employees of the Corporation, including the Executive, shall not be deemed a reduction of the Executive's compensation package for purposes of this definition). 10. Compensation upon Termination. (a) If the Executive's employment is terminated as a result of his death or Disability, the Company shall pay to the Executive or to the Executive's estate, as applicable, (x) his Base Salary and any accrued but unpaid Bonus and expense reimbursement amounts through the date of his Death or Disability. All Stock Options that are scheduled to vest by the end of the calendar year in which such termination occurs shall be accelerated and deemed to have vested as of the termination date. All Stock Options that have not vested (or been deemed pursuant to the immediately preceding sentence to have vested) as of the date of termination shall be deemed to have expired as of such date. (b) If the Executive's employment is terminated by the Board of Directors of the Company for Cause, then the Company shall pay to the Executive his Base Salary through the date of his termination and the Executive shall have no further entitlement to any other compensation or benefits from the Company. All Stock Options that have not vested as of the date of termination shall be deemed to have expired as of such date. Any Stock Options that have vested as of the date of the Executive's termination for Cause shall remain exercisable for a period of 90 days. (c) If the Executive's employment is terminated by the Company (or its successor) upon the occurrence of a Change of Control, the Company (or its successor, as applicable) shall (i) continue to pay to the Executive his Base Salary for a period of one year following such termination, and (ii) pay the Executive any accrued and unpaid Bonus and expense reimbursement amounts through the date of termination. The Company's obligation under clause (i) in the preceding sentence shall be reduced, however, by any amounts otherwise actually earned by the Executive during the one year period following the termination of his employment. All Stock Options that have not vested as of the date of such termination shall be accelerated and deemed to have vested as of such date. (d) If the Executive's employment is terminated by the Company other than as a result of the Executive's death or Disability and other than for reasons specified in Sections 10(b) or (c), then the Company shall (i) continue to pay to the Executive his Base Salary for a period of one year following such termination, and (ii) pay the Executive any expense reimbursement amounts owed through the date of termination. The Company's obligation under clauses (i) and (ii) in the preceding sentence shall be subject to offset by any amounts otherwise received by the Executive from any employment during the one year period following the termination of his employment. All Stock Options that are scheduled to vest by the end of the calendar year in which such termination occurs shall be accelerated and deemed to have vested as of the termination date. All Stock Options that have not vested (or been deemed pursuant to the immediately preceding sentence to have vested) as of the date of termination shall be deemed to have expired as of such date. Any Stock Options that have vested as of the date of the Executive's termination shall remain exercisable for a period of 90 days. 9

(e) This Section 10 sets forth the only obligations of the Company with respect to the termination of the Executive's employment with the Company, and the Executive acknowledges that, upon the termination of his employment, he shall not be entitled to any payments or benefits which are not explicitly provided in Section 10. (f) Upon termination of the Executive's employment hereunder for any reason, the Executive shall be deemed to have resigned as director of the Company, effective as of the date of such termination. (g) The provisions of this Section 10 shall survive any termination of this Agreement. 11. Miscellaneous. (a) This Agreement shall be governed by, and construed and interpreted in accordance with, the laws of the State of New York, without giving effect to its principles of conflicts of laws. (b) Any dispute arising out of, or relating to, this Agreement or the breach thereof (other than Sections 6 or 7 hereof), or regarding the interpretation thereof, shall be finally settled by arbitration conducted in New York City in accordance with the rules of the American Arbitration Association then in effect before a single arbitrator appointed in accordance with such rules. Judgment upon any award rendered therein may be entered and enforcement obtained thereon in any court having jurisdiction. The arbitrator shall have authority to grant any form of appropriate relief, whether legal or equitable in nature, including specific performance. For the purpose of any judicial proceeding to enforce such award or incidental to such arbitration or to compel arbitration and for purposes of Sections 6 and 7 hereof, the parties hereby submit to the non-exclusive jurisdiction of the Supreme Court of the State of New York, New York County, or the United States District Court for the Southern District of New York, and agree that service of process in such arbitration or court proceedings shall be satisfactorily made upon it if sent by registered mail addressed to it at the address referred to in paragraph (g) below. The costs of such arbitration shall be borne proportionate to the finding of fault as determined by the arbitrator. Judgment on the arbitration award may be entered by any court of competent jurisdiction. (c) This Agreement shall be binding upon and inure to the benefit of the parties hereto, and their respective heirs, legal representatives, successors and assigns. (d) This Agreement, and the Executive's rights and obligations hereunder, may not be assigned by the Executive. The Company may assign its rights, together with its obligations, hereunder in connection with any sale, transfer or other disposition of all or substantially all of its business or assets. 10

(e) This Agreement cannot be amended orally, or by any course of conduct or dealing, but only by a written agreement signed by the parties hereto. (f) The failure of either party to insist upon the strict performance of any of the terms, conditions and provisions of this Agreement shall not be construed as a waiver or relinquishment of future compliance therewith, and such terms, conditions and provisions shall remain in full force and effect. No waiver of any term or condition of this Agreement on the part of either party shall be effective for any purpose whatsoever unless such waiver is in writing and signed by such party. (g) All notices, requests, consents and other communications, required or permitted to be given hereunder, shall be in writing and shall be delivered personally or by an overnight courier service or sent by registered or certified mail, postage prepaid, return receipt requested, to the parties at the addresses set forth on the first page of this Agreement, and shall be deemed given when so delivered personally or by overnight courier, or, if mailed, five days after the date of deposit in the United States mails. Either party may designate another address, for receipt of notices hereunder by giving notice to the other party in accordance with this paragraph (g). (h) This Agreement sets forth the entire agreement and understanding of the parties relating to the subject matter hereof, and supersedes all prior agreements, arrangements and understandings, written or oral, relating to the subject matter hereof. No representation, promise or inducement has been made by either party that is not embodied in this Agreement, and neither party shall be bound by or liable for any alleged representation, promise or inducement not so set forth. (i) As used in this Agreement, "affiliate" of a specified Person shall mean and include any Person controlling, controlled by or under common control with the specified Person. (j) The section headings contained herein are for reference purposes only and shall not in any way affect the meaning or interpretation of this Agreement. (k) This Agreement may be executed in any number of counterparts, each of which shall constitute an original, but all of which together shall constitute one and the same instrument. Signature page follows. 11

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the date first above written. MANHATTAN PHARMACEUTICALS, INC. By: /s/ Nicholas J. Rossettos ------------------------------------ Name: Nicholas J. Rossettos Title: Chief Financial Officer EXECUTIVE By: /s/ Dr. Leonard Firestone ------------------------------------ Name: Dr. Leonard Firestone 12

EXHIBIT 23.1 CONSENT We consent to the inclusion in this registration statement of our report on our audit of Manhattan Research Development, Inc. (formerly Manhattan Pharmaceuticals, Inc.) as of December 31, 2002, and for the year then ended and for the period from January 1, 2002 to December 31, 2002, as related to the period from August 1, 2001 (date of inception) to December 31, 2002. We also consent to the reference to our firm under the caption "Experts." /s/ J.H. COHN LLP Roseland, New Jersey January 12, 2004

EXHIBIT 23.2 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS We hereby consent to the use in this registration statement of Manhattan Pharmaceuticals, Inc. on Form SB-2 of our report dated November 1, 2002 relating to the financial statements of Manhattan Pharmaceuticals Inc. as of December 31, 2001 and for the period from August 6, 2001 (inception) to December 31, 2001. We also consent to the reference to us under the heading "Experts". /s/ Weinberg & Company, P.A. Weinberg & Company, P.A. Certified Public Accountants Boca Raton, Florida January 12, 2004