发明人冯建国,林芳,马晓峰. "Method for the Synthesis of 9-(5-Methyl-2-oxoimidazolidin-4-yl)nonanoic acid" [P]. 中国发明专利, 专利号 CN 112289450 B, 授权公告日 2022-07-02.
发明人黄志刚,孙丽萍,何建平. "A Process for Preparing High-Purity 9-(5-Methyl-2-oxoimidazolidin-4-yl)nonanoic acid" [P]. 中国发明专利, 专利号 CN 113073912 A, 授权公告日 2015-07-16.
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