(2S,4R)-4-(2-chlorophenylsulfonyl)-N-(1-cyanocyclopropyl)pyrrolidine-2-carboxamide 、
1-(3-methylpiperidin-1-yl)cyclopropanecarboxylic acid hydrochloride 以yielded (2S,4R)-4-(2-chlorophenylsulfonyl)-N-(1-cyanocyclopropyl)-1-(1-(3-methylpiperidin-1-yl)cyclopropanecarbonyl)pyrrolidine-2-carboxamide as a light brown gum (41%)的产率得到(2S,4R)-4-(2-chlorophenylsulfonyl)-N-(1-cyanocyclopropyl)-1-(1-(3-methylpiperidin-1-yl)cyclopropanecarbonyl)pyrrolidine-2-carboxamide