常见例句雙語例句METHODS Bretazenil was synthesized from 3-bromoaniline by cyclization, oxidation and ring-enlargement reaction, etc.方法以3-溴苯胺爲起始原料，經過成環、氧化、擴環等反應得到目標産物。www.zgyxzz.com.cn 返回 bromoaniline