发明人徐明华,陈志强,孙丽萍. "Method for the Synthesis of 9-Bromo-7-chloro-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 111448248 B, 授权公告日 2022-02-19.
发明人刘建华,林芳,孙丽萍. "A Process for Preparing High-Purity 9-Bromo-7-chloro-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 109967893 B, 授权公告日 2015-10-22.
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