(-)-tert-butyl (2S)-1-{[(1R,6S)-1-(aminomethyl)-3,4-dimethyl-6-phenylcyclohex-3-enyl]carbonyl}pyrrolidine-2-carboxylate 以
甲苯 为溶剂,
反应 120.0h,
以88%的产率得到(+)-3,4-dimethyl-6-phenyl-2',3',7',8',9',9a'-hexahydro-1'H,5'H-spiro[cyclohex-3-ene-1,4'-pyrrolo[1,2-a][1,4]diazepine-1,5-dione]