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发明人高志强,朱建伟,周伟. "Method for the Synthesis of Ethyl 4-oxotetrahydrothiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 113327022 B, 授权公告日 2020-08-09.
发明人王建平,杨光,徐明华. "A Process for Preparing High-Purity Ethyl 4-oxotetrahydrothiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109610152 B, 授权公告日 2022-08-08.
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