发明人郭海燕,何建平,刘建华. "Method for the Synthesis of 3-Methoxy-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110292065 B, 授权公告日 2018-10-16.
发明人周伟,陈志强,钱学锋. "A Process for Preparing High-Purity 3-Methoxy-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110232687 A, 授权公告日 2017-08-02.
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