发明人黄志刚,杨光,唐晓军. "一种芬布芬EP杂质A的合成方法" [P]. 中国发明专利, 专利号 CN 117299996 A, 授权公告日 2017-11-08.
发明人周伟,刘建华,郭海燕. "Method for the Synthesis of Fenbufen EP Impurity A" [P]. 中国发明专利, 专利号 CN 111839545 B, 授权公告日 2023-04-25.
发明人郑宇鹏,徐明华,刘建华. "A Process for Preparing High-Purity Fenbufen EP Impurity A" [P]. 中国发明专利, 专利号 CN 116303290 A, 授权公告日 2018-12-07.
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