N-Methyl-N-((3R,4R)-4-methylpiperidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

(3r,4r)-n,4-dimethyl-n-{7h-pyrrolo[2,3-d]pyrimidin-4-yl}piperidin-3-amine ; (3r,4r)-methyl{(4-methylpiperidin-3-yl)(7h-pyrrolo[2,3-d]pyrimidin-4-yl)}amine ; 1h-pyrrolo[2,3-d]pyrimidin-4-amine,n-methyl-n-[(3r,4r)-4-methyl-3-piperidinyl]- (9ci) ; tofacitinib impurity 2 ; n-methyl-n-((3r,4r)-4-methylpiperidin-3-yl)-7h-pyrrolo[2,3-d]pyrimidin-4-amine ; tofacitinib impurity m ; h-pyrrolo[2,3-d]pyrimidin-4-amine ; n-methyl-n-((3r,4r)-4-methylpiperidin-3-yl)-1h-pyrrolo[2,3-d]pyrimidin-4-amine ; 7h-pyrrolo[2,3-d]pyrimidin-4-amine, n-methyl-n-[(3r,4r)-4-methyl-3-piperidinyl]- ; n-methyl-n-[(3r,4r)-4-methylpiperidin-3-yl]-7h-pyrrolo[2,3-d]