发明人刘建华,何建平,徐明华. "Method for the Synthesis of 2-(6-Chloro-3-(difluoromethyl)-5-methoxypyridin-2-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 117077089 B, 授权公告日 2022-02-19.
发明人朱建伟,钱学锋,刘建华. "A Process for Preparing High-Purity 2-(6-Chloro-3-(difluoromethyl)-5-methoxypyridin-2-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 108499113 A, 授权公告日 2022-04-15.
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