英文别名Tofacitinib impurity 3; 3-{(3R,4R)-3-[(2-Chloro-7H-pyrrolo[2,3-d]pyrimidin-4-yl)(methyl)amino]-4-methyl-1-piperidinyl}-3-oxopropanenitrile; N-Methyl-N-(3R,4R)-1-cyanoacetyl-4-methylpiperidin-3-yl-2-chloro-7-deazapurine-6-amine; 2-Chloro-tofacitinib; 3-[(3R,4R)-3-[(2-chloro-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-methylamino]-4-methylpiperidin-1-yl]-3-oxopropanenitrile; Tofacitinib Impurity 7; (3S,4S)-2-Chloro-Tofacitinib; Tofacitinib Impurity 8; Tofacitinib-20; Tofacitinib Impurity YT; Tofacitinib impurity PF-05087352 
