发明人赵玉洁,孙丽萍,马晓峰. "Method for the Synthesis of 6-Amino-5-chloro-4-(difluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 109562812 B, 授权公告日 2017-07-24.
发明人朱建伟,高志强,李文辉. "A Process for Preparing High-Purity 6-Amino-5-chloro-4-(difluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 112351259 A, 授权公告日 2017-08-15.
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