发明人高志强,孙丽萍,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111029918 A, 授权公告日 2021-08-05.
发明人张德明,孙丽萍,周伟. "Method for the Synthesis of N-Benzyl-2-imino-10-methyl-5-oxo-1-propyl-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 112832098 B, 授权公告日 2020-08-14.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2019, 1857, 7369-7390.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2022, 818, 2688-2718.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of N-Benzyl-2-imino-10-methyl-5-oxo-1-propyl-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide Using HRMS and NMR". J. Chromatogr. A, 2020, 1209, 1480-1507.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2020, 1114, 8247-8257.