发明人王建平,钱学锋,高志强. "Method for the Synthesis of 2-Chloro-6-(3-chloropyrazin-2-yl)pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 111282719 A, 授权公告日 2018-09-13.
发明人沈红梅,刘建华,黄志刚. "A Process for Preparing High-Purity 2-Chloro-6-(3-chloropyrazin-2-yl)pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 113566746 A, 授权公告日 2019-12-15.
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