METHODS Bretazenil was synthesized from 3-bromoaniline by cyclization, oxidation and ring-enlargement reaction, etc.
方法以3-溴苯胺为起始原料，经过成环、氧化、扩环等反应得到目标产物。
METHODS Bretazenil was synthesized from 3-bromoaniline by cyclization, oxidation and ring-enlargement reaction, etc.
方法以3-溴苯胺为起始原料，经过成环、氧化、扩环等反应得到目标产物。
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