Sørensen M, Rossi M, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3575586 A1, 2017-07-26.
Kowalski A, Nowak P, Björnsson E. "Method for the Synthesis of 2-chloro-7-fluoro-pyrido[1,2-a]pyrimidin-4-one" [P]. European Patent, EP 3855340 A1, 2019-02-07.
Brown S R, Schröder R, Johnson M A. "A Process for Preparing High-Purity 2-chloro-7-fluoro-pyrido[1,2-a]pyrimidin-4-one" [P]. US Patent, US 10921449 B2, 2016-11-04.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2022, 1075, 3926-3930.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2011, 1028, 1594-1608.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 2-chloro-7-fluoro-pyrido[1,2-a]pyrimidin-4-one Using HRMS and NMR". Anal. Methods, 2010, 1617, 3409-3424.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2013, 1538, (6), 8719-8723.