ethyl (S)-8-bromo-9-oxo-12,12a-dihydro-9H,11H-azeto [2,1-c]imidazo [1,5-a][1,4]benzodiazepine-1-carboxylate 、
sodium hydroxide 、
乙醇 、
盐酸 在
alcohol 作用下,
以
水 为溶剂,
反应 0.25h,
以there were obtained 19.8 g (98%) of (S)-8-bromo-9-oxo-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]-benzodiazepine-1-carboxylic acid of m.p. 178°-180°的产率得到(S)-8-bromo-9-oxo-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepine-1-carboxylic acid