N-pyrazole A 2A receptor agonists

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Carbohydrate doai

Reexamination Certificate

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Reexamination Certificate

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07655637

ABSTRACT:
2-adenosine N-pyrazole compounds having the following formula:wherein R1═CH2OH; R2is hydrogen; R3is selected from the group consisting of CO2R20; —CONR7R8,and aryl wherein the aryl substituent is optionally substituted with one substituent selected from the group consisting of halo, C1-3alkyl and OR20;R4is hydrogen; R7is selected from hydrogen, and C1-3alkyl; R8is hydrogen; and R20is selected from hydrogen and methyl as well as methods for using the compositions as A2A receptor agonists to stimulate mammalian coronary vasodilatation for therapeutic purposes and for purposes of imaging the heart are disclosed.

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