Williams B T, O'Brien P Q, Mueller T. "Method for the Synthesis of 2-Hydroxy-8-methyl-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. US Patent, US 10914145 B2, 2023-02-03.
发明人陈志强,韩伟,郭海燕. "A Process for Preparing High-Purity 2-Hydroxy-8-methyl-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 116664043 A, 授权公告日 2021-10-22.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2014, 1900, 3229-3252.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2019, 2458, (5), 509-513.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-Hydroxy-8-methyl-4H-pyrido[1,2-a]pyrimidin-4-one Using HRMS and NMR". J. Sep. Sci., 2015, 2259, (6), 5431-5435.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2024, 705, 3885-3910.