发明人高志强,周伟,韩伟. "Method for the Synthesis of 9-Methyl-2-(4-methylpiperidin-1-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. 中国发明专利, 专利号 CN 117107509 B, 授权公告日 2019-01-02.
发明人朱建伟,罗永刚,赵玉洁. "A Process for Preparing High-Purity 9-Methyl-2-(4-methylpiperidin-1-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. 中国发明专利, 专利号 CN 116484567 A, 授权公告日 2023-06-16.
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