| abstract |
The present invention relates to novel compounds of formula (I), pharmaceutically acceptable salts, hydrates, solvates and isomers thereof, useful as inhibitors of Cyclin Dependent Kinase (hereinafter referred to as "CDK"). The present invention also relates to an anticancer composition comprising the compound of formula 1 as an active ingredient together with a pharmaceutically acceptable carrier.n n n n n n n n n n In the above formulan n n R1, R2 and R3 are as defined in the specification, respectively. |