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