ethyl (2R,5S)2-(2-{2-[5-benzyl-3-methyl-4-oxo-2-(1-phenylvinyl)imidazolidin-1-ylcarbonyl]-4-fluorophenyl}hydrazono)-2-chloroacetate 在
三乙胺 作用下,
以
甲苯 为溶剂,
反应 24.0h,
以77%的产率得到ethyl (3aS,3bR,6S)-6-benzyl-10-fluoro-4-metyl-5,8-dioxo-3a-phenyl-3,3a,3b,4,5,6-hexahydro-8H-benzo[e]imidazo[1,2-a]pyrazolo[5,1-c][1,4]diazepine-2-carboxylate