发明人周伟,李文辉,陈志强. "一种7-溴-9-氯-2-乙基-4H-吡啶并[1,2-A]嘧啶-4-酮的合成方法" [P]. 中国发明专利, 专利号 CN 113310963 A, 授权公告日 2020-03-09.
发明人韩伟,黄志刚,孙丽萍. "Method for the Synthesis of 7-Bromo-9-chloro-2-ethyl-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 109869630 A, 授权公告日 2018-05-11.
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