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发明人徐明华,周伟,钱学锋. "Method for the Synthesis of 3-Ethyl-5-(hydroxymethylene)-4-methyl-1H-pyrrol-2(5H)-one" [P]. 中国发明专利, 专利号 CN 115146398 A, 授权公告日 2021-06-26.
发明人朱建伟,王建平,刘建华. "A Process for Preparing High-Purity 3-Ethyl-5-(hydroxymethylene)-4-methyl-1H-pyrrol-2(5H)-one" [P]. 中国发明专利, 专利号 CN 111254546 B, 授权公告日 2021-02-27.
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