发明人唐晓军,王建平,刘建华. "Method for the Synthesis of 5-(Difluoromethyl)-3-methoxypicolinonitrile" [P]. 中国发明专利, 专利号 CN 115601535 A, 授权公告日 2018-02-28.
发明人何建平,罗永刚,赵玉洁. "A Process for Preparing High-Purity 5-(Difluoromethyl)-3-methoxypicolinonitrile" [P]. 中国发明专利, 专利号 CN 112718450 B, 授权公告日 2018-11-24.
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