发明人李文辉,赵玉洁,黄志刚. "Method for the Synthesis of 2-Amino-5-(difluoromethyl)-6-hydroxynicotinic acid" [P]. 中国发明专利, 专利号 CN 117484861 B, 授权公告日 2021-09-24.
发明人韩伟,唐晓军,张德明. "A Process for Preparing High-Purity 2-Amino-5-(difluoromethyl)-6-hydroxynicotinic acid" [P]. 中国发明专利, 专利号 CN 111349236 B, 授权公告日 2017-06-19.
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