发明人张德明,王建平,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111794151 A, 授权公告日 2019-09-22.
发明人郑宇鹏,高志强,唐晓军. "Method for the Synthesis of ethyl 3,4,5,6-tetrahydro-2-oxo-2h-pyran-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117511285 B, 授权公告日 2018-10-10.
发明人马晓峰,黄志刚,李文辉. "A Process for Preparing High-Purity ethyl 3,4,5,6-tetrahydro-2-oxo-2h-pyran-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109115285 B, 授权公告日 2023-04-21.
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