英文别名Palbociclib Impurity 1; 2-Methyl-2-propanyl 4-{6-[(6-acetyl-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino]-3-pyridinyl}-1-piperazinecarboxylate; 1-Piperazinecarboxylic acid, 4-[6-[(6-acetyl-8-cyclopentyl-7,8-dihydro-5-methyl-7-oxopyrido[2,3-d]pyrimidin-2-yl)amino]-3-pyridinyl]-, 1,1-dimethylethyl ester; 4-[6-[(6-Acetyl-8-cyclopentyl-7,8-dihydro-5-methyl-7-oxopyrido[2,3-d]pyrimidin-2-yl)amino]-3-pyridinyl]-1-piperazinecarboxylic acid 1,1-dimethylethyl ester; N-BOC Palbociclib; Palbociclib Impurity 33; Palbociclib Impurity X; Pabociclib Impurity B; Palbociclib-008 
