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发明人唐晓军,陈志强,周伟. "Method for the Synthesis of 4-(Difluoromethyl)-5-methoxy-6-(trifluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 117744059 A, 授权公告日 2015-12-05.
发明人罗永刚,韩伟,马晓峰. "A Process for Preparing High-Purity 4-(Difluoromethyl)-5-methoxy-6-(trifluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 108543306 A, 授权公告日 2018-03-03.
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