发明人胡光,杨光,孙丽萍. "Method for the Synthesis of 2-((3-Chlorophenyl)amino)-9-methyl-3-((2-phenylhydrazono)methyl)-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 117446173 B, 授权公告日 2015-07-01.
发明人朱建伟,罗永刚,钱学锋. "A Process for Preparing High-Purity 2-((3-Chlorophenyl)amino)-9-methyl-3-((2-phenylhydrazono)methyl)-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 113204418 A, 授权公告日 2017-03-17.
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". Anal. Chem., 2018, 2444, 3329-3353.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2015, 1071, 8818-8828.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 2-((3-Chlorophenyl)amino)-9-methyl-3-((2-phenylhydrazono)methyl)-4H-pyrido[1,2-a]pyrimidin-4-one Using HRMS and NMR". Anal. Methods, 2024, 201, (9), 8359-8377.