发明人张德明,刘建华,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112319706 A, 授权公告日 2021-07-14.
发明人朱建伟,王建平,马晓峰. "Method for the Synthesis of 3-Chloro-2-(chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 110550268 A, 授权公告日 2023-08-18.
发明人孙丽萍,徐明华,郑宇鹏. "A Process for Preparing High-Purity 3-Chloro-2-(chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 113606166 B, 授权公告日 2016-01-07.
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