(5-Bromo-2-chloro-pyrimidin-4-yl)-((S)-3-methanesulfonyl-cyclohexyl)-amine 、
((S)-1-methanesulfonyl-piperidin-3-yl)-{2-methylsulfanyl-5-[5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazin-2-yl]-pyrimidin-4-yl}-amine 以to give [2-Chloro-5-(5H-pyrrolo[2,3-b]pyrazin-2-yl)-pyrimidin-4-yl]-((S)-1-methanesulfonyl-piperidin-3-yl)-amine的产率得到[2-chloro-5-(5H-pyrrolo[2,3-b]pyrazin-2-yl)-pyrimidin-4-yl]-((S)-1-methanesulfonyl-piperidin-3-yl)-amine