4-(1-(5-(6-bromo-3H-imidazo[4,5-b]pyridin-2-yl)-2,4-dimethyllbenzoyl)piperidin-4-yl)benzonitrile 、
sodium methansulfinate 在
copper(I) trifluoromethanesulfonate benzene 、 (1R,2R)-1,2-diaminocyclohexane 作用下,
以
二甲基亚砜 为溶剂,
以16%的产率得到4-(1-(2,4-dimethyl-5-(6-(methylsulfonyl)-3H-imidazo[4,5-b]pyridin-2-yl)benzoyl)piperidin-4-yl)benzonitrile