1-tert-butyl 2-methyl (2S)-5-methyl-4-[(4-methyl-1-piperazinyl)carbonyl]-2,3-dihydro-1H-pyrrole-1,2-dicarboxylate                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以6.18 g的产率得到(2S)-1-(tert-butoxycarbonyl)-5-methyl-4-[(4-methyl-1-piperazinyl)carbonyl]-2,3-dihydro-1H-pyrrole-2-carboxylic acid