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发明人徐明华,刘建华,朱建伟. "Method for the Synthesis of 2-[(2,5-difluorophenyl)amino]pyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111242465 B, 授权公告日 2025-06-23.
发明人唐晓军,赵玉洁,李文辉. "A Process for Preparing High-Purity 2-[(2,5-difluorophenyl)amino]pyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113491625 A, 授权公告日 2019-10-14.
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