发明人朱建伟,黄志刚,沈红梅. "Method for the Synthesis of (5Z)-2-Imino-1-methyl-5-{[4-(trifluoromethoxy)phenyl]methylidene}imidazolidin-4-one" [P]. 中国发明专利, 专利号 CN 111194106 B, 授权公告日 2022-08-11.
发明人陈志强,周伟,刘建华. "A Process for Preparing High-Purity (5Z)-2-Imino-1-methyl-5-{[4-(trifluoromethoxy)phenyl]methylidene}imidazolidin-4-one" [P]. 中国发明专利, 专利号 CN 114559225 A, 授权公告日 2017-04-04.
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