PYRIDINE AND PYRAZINE DERIVATIVES AS PROTEIN KINASE MODULATORS

摘要

PROBLEM TO BE SOLVED: To provide a novel inhibitor that is useful as a therapeutic agent for protein kinase, particularly cyclin-dependent kinase (CDK).SOLUTION: The present invention provides a compound of formula (I), and pharmaceutically acceptable salts, enantiomers, stereoisomers, rotamers, tautomers, diastereomers, or racemates thereof.