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发明人黄志刚,马晓峰,张德明. "Method for the Synthesis of 1-(cyanomethyl)-3-[(ethoxycarbonyl)amino]pyridinium chloride" [P]. 中国发明专利, 专利号 CN 108332430 B, 授权公告日 2015-11-23.
发明人杨光,周伟,韩伟. "A Process for Preparing High-Purity 1-(cyanomethyl)-3-[(ethoxycarbonyl)amino]pyridinium chloride" [P]. 中国发明专利, 专利号 CN 111863895 B, 授权公告日 2023-06-08.
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