发明人林芳,罗永刚,杨光. "一种2-chloro-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one的合成方法" [P]. 中国发明专利, 专利号 CN 112112008 A, 授权公告日 2015-09-09.
发明人周伟,冯建国,唐晓军. "Method for the Synthesis of 2-chloro-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 108525036 A, 授权公告日 2022-09-21.
发明人韩伟,林芳,朱建伟. "A Process for Preparing High-Purity 2-chloro-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 116730717 B, 授权公告日 2020-11-28.
参考文献 Literature
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