发明人刘建华,李文辉,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111938545 A, 授权公告日 2018-08-13.
发明人孙丽萍,赵玉洁,胡光. "Method for the Synthesis of 3-(3-Acetyl-4-hydroxy-2-(4-isopropylphenyl)-5-oxo-2,5-dihydro-1H-pyrrol-1-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 109524329 A, 授权公告日 2019-08-25.
发明人黄志刚,李文辉,冯建国. "A Process for Preparing High-Purity 3-(3-Acetyl-4-hydroxy-2-(4-isopropylphenyl)-5-oxo-2,5-dihydro-1H-pyrrol-1-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 114363963 B, 授权公告日 2017-08-09.
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