Synonyms
2-Chloro-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7(8H)-one
2-Chloro-8-cyclopentyl-5-methyl-8H-pyrido[2,3-d]pyrimidin-7-one
2-chloro-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7-one
Pyrido[2,3-d]pyrimidin-7(8H)-one, 2-chloro-8-cyclopentyl-5-methyl-
Description
Palbociclib Impurity 63 is an impurity of Palbociclib, a medication for the treatment of HR-positive and HER2-negative breast cancer. It is a selective inhibitor of the cyclin-dependent kinases CDK4 and CDK6.