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发明人张德明,黄志刚,周伟. "Method for the Synthesis of 2-(Difluoromethyl)-6-methyl-4-nitropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117674775 A, 授权公告日 2020-06-23.
发明人周伟,唐晓军,孙丽萍. "A Process for Preparing High-Purity 2-(Difluoromethyl)-6-methyl-4-nitropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113854265 A, 授权公告日 2025-11-06.
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