6-Substituted pyrazolo [3,4-d] pyrimidin-4-ones useful as cyclin dependent kinase inhibitors

摘要

This invention relates to 6-substituted pyrazolo[3,4-d]pyrimidin-4-ones useful as cyclin dependant kinase (cdk) inhibitors, pharmaceutical compositions comprising the same and methods for using these compounds for treating cancer and proliferative diseases.