发明人赵玉洁,陈志强,刘建华. "Method for the Synthesis of 2-(Difluoromethyl)-6-fluoro-3-(trifluoromethyl)pyridine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112279152 B, 授权公告日 2018-07-08.
发明人黄志刚,胡光,钱学锋. "A Process for Preparing High-Purity 2-(Difluoromethyl)-6-fluoro-3-(trifluoromethyl)pyridine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114637935 A, 授权公告日 2017-10-17.
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