发明人韩伟,唐晓军,陈志强. "Method for the Synthesis of 4,5-Dichloro-2-(difluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 111308076 B, 授权公告日 2022-05-07.
发明人马晓峰,何建平,张德明. "A Process for Preparing High-Purity 4,5-Dichloro-2-(difluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 114812126 A, 授权公告日 2017-03-05.
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