4-p-tolyl-1,4,5,6-tetrahydrocyclopenta[b]pyrrole-2-carboxylate   、                                                                                      
sodium hydroxide                                                                                                                                                              在
                                                                                                                                                                                 
4-p-tolyl-1,4,5,6-tetrahydrocyclopenta[b]pyrrole-2-carboxylic acid   、                                                                                                  
水   、                                                                                                  
甲酸   、                                                                                                  Acetonitrile methanol   、                                                                                                  
甲醇                                                                                                                                  作用下,
                                                                                                                                                                                                                            以to give 4-p-tolyl-1,4,5,6-tetrahydrocyclopenta[b]pyrrole-2-carboxylic acid (37) (76.9 mg, 28%) 1H NMR (400 MHz, METHANOL-d4) δ ppm 7.02-7.10 (m, 4H), 6.50 (s, 1H), 4.13 (t, J=7.20 Hz, 1H), 2.68-2.94 (m, 3H), 2.29 (s, 3H), 2.14-2.25 (m, 1H)的产率得到4-p-tolyl-1,4,5,6-tetrahydrocyclopenta[b]pyrrole-2-carboxylic acid