Medical intermediates CAS NO 1013916-37-4 | 2-chloro-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7(8H)-one

Uses: 2-Chloro-8-cyclopentyl-5-methyl-8H-pyrido[2,3-d]pyrimidin-7-one is used as pharmaceutical intermediate.

Description: 2-chloro-8-cyclopentyl-5-Methylpyrido[2,3-d]pyriMidin-7(8H)-one is used as an intermediate for Palbociclib, a CDK 4/6 inhibitor used to treat patients with hormone receptor (HR)-positive, HER-2-negative advanced or metastatic (cancer that has spread) breast cancer.