发明人黄志刚,刘建华,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114812163 A, 授权公告日 2023-05-02.
发明人郭海燕,冯建国,李文辉. "Method for the Synthesis of 2-(4-(Difluoromethyl)-5-hydroxypyridin-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109884624 B, 授权公告日 2021-10-09.
发明人罗永刚,何建平,赵玉洁. "A Process for Preparing High-Purity 2-(4-(Difluoromethyl)-5-hydroxypyridin-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 116929959 A, 授权公告日 2017-03-09.
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