Johnson M A, Anderson J P, Stevens L M. "一种的合成方法" [P]. US Patent, US 11548030 B2, 2022-04-05.
发明人徐明华,林芳,钱学锋. "Method for the Synthesis of 8-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-imine" [P]. 中国发明专利, 专利号 CN 114028011 A, 授权公告日 2019-08-05.
发明人罗永刚,何建平,孙丽萍. "A Process for Preparing High-Purity 8-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-imine" [P]. 中国发明专利, 专利号 CN 110653531 B, 授权公告日 2023-06-16.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2017, 2193, (12), 7355-7385.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2025, 1224, (10), 3159-3162.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 8-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-imine Using HRMS and NMR". J. Nat. Prod., 2021, 412, (4), 4983-4997.