发明人王建平,周伟,李文辉. "Method for the Synthesis of (Z)-4-(4-Hydroxy-3,5-dimethoxybenzylidene)-1,2-dimethyl-1H-imidazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 112584152 B, 授权公告日 2017-01-04.
发明人张德明,高志强,冯建国. "A Process for Preparing High-Purity (Z)-4-(4-Hydroxy-3,5-dimethoxybenzylidene)-1,2-dimethyl-1H-imidazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 109984499 B, 授权公告日 2016-05-05.
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