Schröder R, Kumar R, Hughes D C. "Method for the Synthesis of 9-Chloro-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. US Patent, US 9165676 B2, 2024-11-20.
发明人唐晓军,何建平,罗永刚. "A Process for Preparing High-Purity 9-Chloro-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 114925753 A, 授权公告日 2017-01-05.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2019, 1969, 1198-1206.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2023, 1672, (6), 7367-7388.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 9-Chloro-4H-pyrido[1,2-a]pyrimidin-4-one Using HRMS and NMR". J. Sep. Sci., 2010, 1520, (4), 9666-9686.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2025, 1911, 7295-7300.