发明人李文辉,胡光,孙丽萍. "Method for the Synthesis of Ethyl 1-benzothiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115993291 A, 授权公告日 2017-01-28.
发明人郭海燕,赵玉洁,唐晓军. "A Process for Preparing High-Purity Ethyl 1-benzothiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108085576 A, 授权公告日 2022-02-14.
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