5-(2,6-difluorophenyl)isoxazole-3-carboxylic acid 、 rac-(3R*,4R*)-4-amino-1-cyclohexylpiperidine-3-carboxylic acid dimethylamide 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 21.0h,
生成 rac-(3R*,4R*)-1-cyclohexyl-4-{[5-(2,6-difluorophenyl)isoxazole-3-carbonyl]amino}piperidine-3-carboxylic acid dimethylamide