发明人刘建华,朱建伟,赵玉洁. "Method for the Synthesis of 2-(Difluoromethyl)-4-hydroxy-3-methoxy-5-nitropyridine" [P]. 中国发明专利, 专利号 CN 114242286 B, 授权公告日 2021-08-10.
发明人赵玉洁,陈志强,李文辉. "A Process for Preparing High-Purity 2-(Difluoromethyl)-4-hydroxy-3-methoxy-5-nitropyridine" [P]. 中国发明专利, 专利号 CN 116817120 B, 授权公告日 2017-05-02.
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