发明人刘建华,杨光,郭海燕. "Method for the Synthesis of 2-(Difluoromethyl)-5-methoxynicotinic acid" [P]. 中国发明专利, 专利号 CN 117335132 A, 授权公告日 2020-04-01.
发明人李文辉,沈红梅,唐晓军. "A Process for Preparing High-Purity 2-(Difluoromethyl)-5-methoxynicotinic acid" [P]. 中国发明专利, 专利号 CN 108437785 A, 授权公告日 2025-03-14.
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