Klinger H, Brown S R, Schröder R. "一种的合成方法" [P]. US Patent, US 10269403 B2, 2020-06-01.
发明人何建平,王建平,刘建华. "Method for the Synthesis of 4-(3-(2-(1-Methyl-3-(m-tolyl)ureido)ethyl)-1,2,4-oxadiazol-5-yl)benzoic acid" [P]. 中国发明专利, 专利号 CN 110899540 A, 授权公告日 2021-10-21.
发明人张德明,周伟,罗永刚. "A Process for Preparing High-Purity 4-(3-(2-(1-Methyl-3-(m-tolyl)ureido)ethyl)-1,2,4-oxadiazol-5-yl)benzoic acid" [P]. 中国发明专利, 专利号 CN 111440140 A, 授权公告日 2021-02-08.
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