发明人刘建华,冯建国,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112143928 A, 授权公告日 2023-11-18.
发明人赵玉洁,韩伟,唐晓军. "Method for the Synthesis of 2-(Chloromethyl)-9-hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 117997252 B, 授权公告日 2016-01-12.
发明人李文辉,韩伟,孙丽萍. "A Process for Preparing High-Purity 2-(Chloromethyl)-9-hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 115805463 B, 授权公告日 2020-11-19.
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