发明人罗永刚,朱建伟,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112628653 A, 授权公告日 2015-07-23.
发明人刘建华,王建平,陈志强. "Method for the Synthesis of n-(Sec-butyl)-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 109825692 B, 授权公告日 2020-02-09.
Mueller T, Thompson G K, Yamamoto T. "A Process for Preparing High-Purity n-(Sec-butyl)-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxamide" [P]. US Patent, US 10505019 B2, 2020-06-14.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2019, 1889, (7), 190-203.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2015, 307, (11), 9089-9106.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of n-(Sec-butyl)-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxamide Using HRMS and NMR". Anal. Chem., 2014, 1922, (2), 8000-8019.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2018, 251, 5520-5546.