发明人林芳,张德明,郭海燕. "一种2-[(氨基羰基)氨基]-5-溴噻吩-3-羧酸甲酯的合成方法" [P]. 中国发明专利, 专利号 CN 109383586 A, 授权公告日 2017-08-14.
发明人何建平,马晓峰,胡光. "Method for the Synthesis of Methyl 5-bromo-2-ureidothiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 111531009 B, 授权公告日 2018-01-20.
发明人李文辉,马晓峰,胡光. "A Process for Preparing High-Purity Methyl 5-bromo-2-ureidothiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109312961 A, 授权公告日 2015-03-18.
参考文献 Literature
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