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    • 25. 发明专利
    • EE04315B1
    • 2004-06-15
    • EEP200000501
    • 1999-02-18
    • AVENTIS PHARMA INC
    • DUMONT JENNIFER ANNBITONTI ALAN JOSEPHBORCHERDING DAVID ROGERPEET NORTON PAULMUNSON HARRY RANDALLSHUM PATRICK WAI-KWOK
    • A61K31/52A61P25/00A61P35/00A61P35/02C07D473/16
    • The present invention provides novel compounds of formula (I) wherein R is selected from the group consisting of R2, R2NH-, or H2N-R3- wherein R2 is selected from the group consisting of C1-C8 alkyl and formula (II), wherein Z is selected from the group consisting of phenyl, heterocycle and cycloalkyl, each R4 is independently hydrogen or C1-C4 alkyl, and n is an integer 1-8; wherein each C1-C8 alkyl and Z is optionally substituted with 1 to 3 substituents, which may be the same or different, selected from the group consisting of Hal, OH, and C1-C4 alkyl; R3 is C1-C8 alkylene; and R1 is selected from the group consisting of cyclopentyl and isopropyl, and the pharmaceutically acceptable salts, optical isomers, and hydrates thereof. In addition, the present invention provides a method of inhibiting cell cycle progression. More specifically, the present invention provides a method of inhibiting cyclin dependent kinases, particularly cdk-2. The present invention also provides a method of preventing apoptosis in neuronal cells and a method of inhibiting the development of neoplasms. In addition, the present invention provides a composition comprising an assayable amount of a compound of formula (I) in admixture or otherwise in association with an inert carrier. The present invention also provides a pharmaceutical composition comprising an effective inhibitory amount of a compound of formula (I) in admixture or otherwise in association with one or more pharmaceutically acceptable carriers or excipients.