发明人钱学锋,冯建国,郭海燕. "Method for the Synthesis of 5-(4-Chloro-3-nitrophenyl)-3-(3-(difluoromethoxy)phenyl)-1,2,4-oxadiazole" [P]. 中国发明专利, 专利号 CN 108097337 B, 授权公告日 2019-07-11.
发明人徐明华,何建平,刘建华. "A Process for Preparing High-Purity 5-(4-Chloro-3-nitrophenyl)-3-(3-(difluoromethoxy)phenyl)-1,2,4-oxadiazole" [P]. 中国发明专利, 专利号 CN 117042911 B, 授权公告日 2021-11-04.
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