8-bromo-5-oxo-2,3,4,5-tetrahydrobenzo[b]oxepin-4-yl 1-((tert-butoxycarbonyl)amino)cyclopentanecarboxylate                                                                                                                                                              在
                                                                                                                                                                                 ammonium acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 12.0h,
                                                                                                                以31%的产率得到tert-butyl (1-(8-bromo-4,5-dihydro-3H-benzo[2,3]oxepino[4,5-d]imidazol-2-yl)cyclopentyl)carbamate