Hughes D C, Stevens L M, Kumar R. "一种的合成方法" [P]. US Patent, US 11376533 B2, 2015-11-23.
发明人王建平,林芳,徐明华. "Method for the Synthesis of 5-((5-Chloro-4-(methyl(1-methylpiperidin-4-yl)amino)pyridin-2-yl)amino)pyrazine-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 113771352 A, 授权公告日 2019-05-08.
发明人罗永刚,黄志刚,何建平. "A Process for Preparing High-Purity 5-((5-Chloro-4-(methyl(1-methylpiperidin-4-yl)amino)pyridin-2-yl)amino)pyrazine-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 110882942 A, 授权公告日 2018-02-09.
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". J. Pharm. Biomed. Anal., 2021, 1068, (1), 5985-6012.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2023, 1393, (5), 9997-10007.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 5-((5-Chloro-4-(methyl(1-methylpiperidin-4-yl)amino)pyridin-2-yl)amino)pyrazine-2-carbonitrile Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2022, 2081, 1446-1451.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2023, 977, (4), 4331-4361.