2-(R)-(4-fluoro-2-methyl-phenyl)-4-oxo-piperidine-1-carboxylic acid [1-(S)-(3,5-bis-trifluoromethyl-phenyl)ethyl]-methylamide 、 ethyl (1R,5R)-3-azabicyclo[3.1.0]hexane-1-carboxylate trifluoroacetate 在
三乙胺 、
甲醇 、 sodium cyanoborohydride 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以14.54%的产率得到ethyl (1R,5R)-3-[(2R,4R)-1-{[{(1S)-1-[3,5-bis(trifluoromethyl)phenyl]ethyl}(methyl)amino]carbonyl}-2-(4-fluoro-2-methylphenyl)-4-piperidinyl]-3-azabicyclo[3.1.0]hexane-1-carboxylate