发明人马晓峰,张德明,何建平. "Method for the Synthesis of 5-(Difluoromethyl)-4-methoxy-3-methylpicolinonitrile" [P]. 中国发明专利, 专利号 CN 116232861 B, 授权公告日 2022-02-07.
发明人杨光,胡光,马晓峰. "A Process for Preparing High-Purity 5-(Difluoromethyl)-4-methoxy-3-methylpicolinonitrile" [P]. 中国发明专利, 专利号 CN 115090152 B, 授权公告日 2022-12-09.
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