Common use of NOTICE OF EXERCISE OF WARRANT Clause in Contracts

NOTICE OF EXERCISE OF WARRANT. To Be Executed by the Registered Holder in Order to Exercise the Warrant The undersigned hereby irrevocably elects to exercise the attached Warrant to purchase for cash, __________________ of the shares issuable upon the exercise of such Warrant, and requests that certificates for such shares (together with a new Warrant to purchase the number of shares, if any, with respect to which this Warrant is not exercised) shall be issued in the name of __________________________________________ (Print Name) Please insert social security or other identifying number of registered Holder of certificate (_____________) Address: __________________________________________ __________________________________________ Dated: ____________ __________________________________________ Signature* *The signature on the Notice of Exercise of Warrant must correspond to the name as written upon the face of the Warrant in every particular without alteration or enlargement or any change whatsoever. When signing on behalf of a corporation, partnership, trust or other entity, PLEASE indicate your position(s) and title(s) with such entity. ASSIGNMENT FORM To be signed only upon authorized transfer of Warrants. FOR VALUE RECEIVED, the undersigned hereby sells, assigns, and transfers unto _______________________________ the right to purchase the securities of Cougar Biotechnology, Inc. to which the within Warrant relates and appoints ______________________, attorney, to transfer said right on the books of Cougar Biotechnology, Inc. with full power of substitution in the premises. Dated: ____________ __________________________________________ (Signature) Address: __________________________________________ __________________________________________

NOTICE OF EXERCISE OF WARRANT. To Be Executed by the Registered Holder in Order to Exercise the Warrant The undersigned Subscriber hereby irrevocably elects to exercise the attached Warrant to purchase for cashby surrendering a check, ___________________ of the shares issuable upon the exercise of such Warrant, and requests that certificates for such shares (together with a new Warrant to purchase the number of shares, if any, with respect to which this Warrant is not exercised) shall be issued in the name of (Print Name) Please insert social security or other identifying number of registered holder of certificate (__________________________________________ (Print Name) Please insert social security or other identifying number of registered Holder of certificate (_____________) Address: __________________________________________ __________________________________________ Dated: ____________ __________________________________________ , (Signature)* *The signature on the Notice of Exercise of Warrant must correspond to the name as written upon the face of the Warrant in every particular without alteration or enlargement or any change whatsoever. When signing on behalf of a corporation, partnership, trust or other entity, PLEASE indicate your position(s) and title(s) with such entity. ASSIGNMENT FORM To be signed only upon authorized transfer of Warrants. FOR VALUE RECEIVED, the undersigned Subscriber hereby sells, assigns, and transfers unto _______________________________ the right to purchase the securities of Cougar BiotechnologyScanner Technologies Corporation, Inc. to which the within Warrant relates and appoints ______________________, attorney, to transfer said right on the books of Cougar BiotechnologyScanner Technologies Corporation, Inc. with full power of substitution in the premises. Dated: ____________ __________________________________________ (Signature) Address: __________________________________________ __________________________________________:

NOTICE OF EXERCISE OF WARRANT. To Be Executed by the Registered Holder in Order to Exercise the Warrant The undersigned Subscriber hereby irrevocably elects to exercise the attached Warrant to purchase for cashby surrendering a check, ________________________ of the shares issuable upon the exercise of such Warrant, and requests that certificates for such shares (together with a new Warrant to purchase the number of shares, if any, with respect to which this Warrant is not exercised) shall be issued in the name of (Print Name) Please insert social security or other identifying number of registered holder of certificate (__________________________________________ (Print Name) Please insert social security or other identifying number of registered Holder of certificate (_____________) Address: Dated: ____________________________________, ______ __________________________________________ Dated: ____________ __________________________________________ (Signature)* *The signature on the Notice of Exercise of Warrant must correspond to the name as written upon the face of the Warrant in every particular without alteration or enlargement or any change whatsoever. When signing on behalf of a corporation, partnership, trust or other entity, PLEASE indicate your position(s) and title(s) with such entity. ASSIGNMENT FORM To be signed only upon authorized transfer of Warrants. FOR VALUE RECEIVED, the undersigned Subscriber hereby sells, assigns, and transfers unto _______________________________ the right to purchase the securities of Cougar BiotechnologyScanner Technologies Corporation, Inc. to which the within Warrant relates and appoints ______________________, attorney, to transfer said right on the books of Cougar BiotechnologyScanner Technologies Corporation, Inc. with full power of substitution in the premises. Dated: ____________ __________________________________________ (Signature) Address: ____________________________________, ______ __________________________________________(Signature) Address:

NOTICE OF EXERCISE OF WARRANT. To Be Executed by the Registered Holder in Order to Exercise the Warrant The undersigned hereby irrevocably elects to exercise the attached right, represented by the Warrant dated as of ____________________, __________, to purchase for cash, ____________________ shares of the shares issuable upon Common Stock, $.0001 par value, of LIFELINE THERAPEUTICS, INC. and tenders herewith payment in accordance with Section 1 of said Common Stock Purchase Warrant. Payment shall take the exercise form of such Warrant, and requests that certificates for such shares (together with a new Warrant to purchase the number of shares, if any, with respect to which this Warrant is not exercised) shall be issued in the name of check applicable box): [ ] CASH: $____________________________________________________ = (Print NameExercise Price x Exercise Shares) Please insert social security or other identifying [ ] The cancellation of such number of registered Holder of certificate (Warrant Shares as is necessary, in accordance with the formula set forth in Section 2(c), to exercise this Warrant. Payment is being made by: _____ enclosed check _____ wire transfer _____) Address_ other I understand that I may only exercise this Warrant if there is a registration statement relating to the exercise of this Warrant that is effective under federal and applicable state law, or alternatively if there is an exemption from registration available under federal and applicable state (which exemption must be established to the satisfaction of Lifeline Therapeutics, Inc.). In each case, I understand that Lifeline Therapeutics, Inc. may require that I provide it information regarding my financial status, state of residence, and other information necessary to determine whether the exercise is subject to an effective registration statement or to determine whether an applicable exemption is available. The undersigned represents to Lifeline Therapeutics that it is an “accredited investor” as defined in Regulation D promulgated under the Securities Act of 1933, as amended. The undersigned further represents and warrants that it has reviewed all of the reports filed by the Company with the Securities and Exchange Commission, the press releases issued by the Company, and such other information regarding the Company as it has determined appropriate or necessary in the circumstances, that it has received such additional information regarding the Company that it has requested, and that it has consulted with its legal, tax, investment, financial, and other advisors regarding the exercise described in this Notice of Exercise. Please deliver the stock certificate to: __________________________________________ __________________________________________ Dated: ____________ __________________________________________ Signature* *The signature on the Notice of Exercise of Warrant must correspond to the name as written upon the face of the Warrant in every particular without alteration or enlargement or any change whatsoever. When signing on behalf of a corporation, partnership, trust or other entity, PLEASE indicate your position(s) and title(s) with such entity. ASSIGNMENT FORM To be signed only upon authorized transfer of Warrants. FOR VALUE RECEIVED, the undersigned hereby sells, assigns, and transfers unto _______________________________ the right to purchase the securities of Cougar Biotechnology, Inc. to which the within Warrant relates and appoints ______________________, attorney, to transfer said right on the books of Cougar Biotechnology, Inc. with full power of substitution in the premises. Dated: ____________ __________________________________________ (Signature) Address: __________________________________________ ___________________________________________________ ___________________________________________________ Dated: __________________________________ _______________________________________ [Print Name of Holder] By: ____________________________________ [Signature] ____________________________________ [Printed name and title of person signing]

NOTICE OF EXERCISE OF WARRANT. To Be Executed by the Registered Holder in In Order to Exercise the this Warrant The undersigned registered Holder hereby irrevocably elects to exercise the attached Warrant and to purchase for cash, __________________ shares of the shares issuable upon the exercise Common Stock of such Warrant, 0xxxxxxxxx.xxx and requests that certificates for such shares (together with a new Warrant to purchase the number hereby makes payment of shares, if any, with respect to which this Warrant is not exercised) shall be issued in the name of $________ (at the rate of $____ per share) in payment of the Exercise Price pursuant thereto. Please issue the shares of Common Stock underlying the Warrants in accordance with the instructions given below. or The undersigned Registered Holder hereby irrevocably elects to exercise the attached Warrant and to purchase ________ shares of Common Stock of 0xxxxxxxxx.xxx by surrender of the unexercised portion of the attached Warrant (with a "Value" of $______ based on a "Market Price" of $______). Please issue the shares of Common Stock underlying the Warrants in accordance with the instructions given below. PLEASE ISSUE CERTIFICATES AS FOLLOWS: PLEASE INSERT SOCIAL SECURITY OR ____________________________________ (Print Name) Please insert social security or other identifying number of registered Holder of certificate (_____________) Address: OTHER IDENTIFYING NUMBER __________________________________________ __________________________________________ Dated: ____________ __________________________________________ Signature* *The signature on the Notice of Exercise of Warrant must correspond to the name as written upon the face of the Warrant in every particular without alteration or enlargement or any change whatsoever. When signing on behalf of a corporation, partnership, trust or other entity, PLEASE indicate your position(s) and title(s) with such entity. ASSIGNMENT FORM To be signed only upon authorized transfer of Warrants. FOR VALUE RECEIVED, the undersigned hereby sells, assigns, and transfers unto _______________________________ the right to purchase the securities of Cougar Biotechnology, Inc. to which the within Warrant relates and appoints ______________________, attorney, to transfer said right on the books of Cougar Biotechnology, Inc. with full power of substitution in the premises. Dated: ____________ __________________________________________ (Signature) Address: __________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ (please print or type name and address) - and be delivered to ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ (please print or type name and address) and if such number of Warrants exercised shall not be all the Warrants evidenced by the attached Warrant, that a new Warrant for the balance of such Warrant be registered in the name of, and delivered to, the registered Holder at the address stated below. THE SIGNATURE ON THIS EXERCUSE FORM MUST CORRESPOND TO THE NAME AS WRITTEN UPON THE FACE OF THIS WARRANT IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A COMMERCIAL BANK OR TRUST COMPANY OR A MEMBER FIRM OF THE AMERICAN STOCK EXCHANGE, NEW YORK STOCK EXCHANGE, PACIFIC STOCK EXCHANGE OR MIDWEST STOCK EXCHANGE. Dated:_____________ ________________________________________ (Signature of Registered Holder) ________________________________________ Signature Guaranteed ________________________________________ (Address of Registered Holder) ________________________________________ (Taxpayer Identification Number)