发明人冯建国,朱建伟,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110191071 A, 授权公告日 2019-02-27.
发明人刘建华,高志强,何建平. "Method for the Synthesis of Ethyl 2-[2-methyl-4-(4-nitrophenyl)-3-oxo-1,2,4-oxadiazolan-5-yl]acetate" [P]. 中国发明专利, 专利号 CN 117228683 B, 授权公告日 2022-04-09.
发明人沈红梅,何建平,郑宇鹏. "A Process for Preparing High-Purity Ethyl 2-[2-methyl-4-(4-nitrophenyl)-3-oxo-1,2,4-oxadiazolan-5-yl]acetate" [P]. 中国发明专利, 专利号 CN 112167973 B, 授权公告日 2017-03-07.
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