发明人高志强,周伟,朱建伟. "Method for the Synthesis of 7-Methoxy-1-benzothiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111236828 B, 授权公告日 2020-02-15.
发明人唐晓军,马晓峰,沈红梅. "A Process for Preparing High-Purity 7-Methoxy-1-benzothiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115939243 B, 授权公告日 2016-02-14.
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