Palbociclib Impurity I

Tert-butyl 4- (2- ((6-bromo-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl) amino) pyridin-3-yl) piperazine-1-carboxylate

C27H34BrN7O3

584.51

Palbociclib

Tert-butyl 4- (2- ((6-bromo-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl) amino) pyridin-3-yl) piperazine-1-carboxylate