发明人李文辉,张德明,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113879926 A, 授权公告日 2023-06-20.
发明人马晓峰,朱建伟,钱学锋. "Method for the Synthesis of 2-(4-Benzylpiperidin-1-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. 中国发明专利, 专利号 CN 116523608 B, 授权公告日 2020-07-24.
发明人沈红梅,高志强,王建平. "A Process for Preparing High-Purity 2-(4-Benzylpiperidin-1-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. 中国发明专利, 专利号 CN 109482283 A, 授权公告日 2017-02-02.
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