发明人黄志刚,何建平,唐晓军. "Method for the Synthesis of 3-Amino-7-bromobenzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108475397 A, 授权公告日 2017-07-04.
发明人张德明,林芳,沈红梅. "A Process for Preparing High-Purity 3-Amino-7-bromobenzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108604997 A, 授权公告日 2017-09-01.
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