(S)-N-4-(trifluoromethyl)benzylidene-4-methylbenzenesulfinamide 、
2-methylenecyclopropane carboxylic acid diphenylamide 在
magnesium iodide 作用下,
以
四氢呋喃 为溶剂,
以94%的产率得到(2R,3R)-4-methylidene-1-[(S)-(4-methylphenyl)sulfinyl]-N,N-diphenyl-2-[4-(trifluoromethyl)phenyl]pyrrolidine-3-carboxamide