1 4EF 3-[(5-chloro-7h-pyrrolo[2,3-D]pyrimidin-4-yl)amino]-N-methyl-4-(morpholin-4-yl)benzenesulfonamide 1.000 2 4CV 3-[(5-bromo-7h-pyrrolo[2,3-D]pyrimidin-4-yl)amino]-N-methyl-4-(morpholin-4-yl)benzenesulfonamide 0.931