发明人李文辉,何建平,刘建华. "Method for the Synthesis of 6-((2-((2-(5-Cyano-4,5-dihydro-1H-pyrazol-1-yl)-2-oxoethyl)amino)ethyl)amino)nicotinonitrile" [P]. 中国发明专利, 专利号 CN 110523216 B, 授权公告日 2021-10-09.
发明人黄志刚,钱学锋,王建平. "A Process for Preparing High-Purity 6-((2-((2-(5-Cyano-4,5-dihydro-1H-pyrazol-1-yl)-2-oxoethyl)amino)ethyl)amino)nicotinonitrile" [P]. 中国发明专利, 专利号 CN 111993099 B, 授权公告日 2019-04-02.
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