英文别名BUTYL 3-[(3R,4R)-4-METHYL-3-[METHYL({7H-PYRROLO[2,3-D]PYRIMIDIN-4-YL)AMINO]PIPERIDIN-1-YL]-3-OXOPROPANOATE; butyl 3-((3R,4R)-4-methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanoate; Tofacitib related impurities 40; Butyl 3-[4-methyl-3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]piperidin-1-yl]-3-oxopropanoate; N-Butyl 3-Oxopropanoate Tofacitinib; Tofatinib Impurity 12; 1-Piperidinepropanoic acid, 4-methyl-3-(methyl-7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-β-oxo-, butyl ester, (3R,4R)-; Tofacitinib n-butyl 3-oxopropanoate 
