发明人王建平,赵玉洁,张德明. "一种2-(piperazin-1-ylmethyl)-4H-pyrido[1,2-a]pyrimidin-4-one的合成方法" [P]. 中国发明专利, 专利号 CN 116366018 A, 授权公告日 2015-08-12.
Patel M V, Brown S R, Davis P L. "Method for the Synthesis of 2-(piperazin-1-ylmethyl)-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. US Patent, US 9846303 B2, 2017-07-13.
发明人冯建国,刘建华,沈红梅. "A Process for Preparing High-Purity 2-(piperazin-1-ylmethyl)-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 114637946 A, 授权公告日 2018-09-26.
参考文献 Literature
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Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-(piperazin-1-ylmethyl)-4H-pyrido[1,2-a]pyrimidin-4-one as an Impurity". Chromatographia, 2010, 1032, (12), 784-801.