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