发明人李文辉,罗永刚,钱学锋. "Method for the Synthesis of 2-(6-Bromo-2-(chloromethyl)-5-(difluoromethyl)pyridin-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 110024925 A, 授权公告日 2025-08-07.
发明人孙丽萍,张德明,沈红梅. "A Process for Preparing High-Purity 2-(6-Bromo-2-(chloromethyl)-5-(difluoromethyl)pyridin-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 110672207 A, 授权公告日 2019-01-27.
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