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发明人冯建国,黄志刚,李文辉. "Method for the Synthesis of 7-(3-((2-Cyclohexyl-2-oxoethylidene)amino)-2,5-dioxoimidazolidin-4-yl)heptanoic acid" [P]. 中国发明专利, 专利号 CN 110926743 B, 授权公告日 2016-09-07.
Patel M V, Lee S K, Williams B T. "A Process for Preparing High-Purity 7-(3-((2-Cyclohexyl-2-oxoethylidene)amino)-2,5-dioxoimidazolidin-4-yl)heptanoic acid" [P]. US Patent, US 11496452 B2, 2020-04-28.
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