发明人黄志刚,郭海燕,陈志强. "Method for the Synthesis of 5-Amino-1-benzothiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112674749 A, 授权公告日 2023-06-06.
发明人罗永刚,唐晓军,孙丽萍. "A Process for Preparing High-Purity 5-Amino-1-benzothiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111085582 A, 授权公告日 2022-11-27.
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