发明人周伟,钱学锋,郭海燕. "Method for the Synthesis of 4-Chloro-2-((methylthio)methyl)-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 109144838 B, 授权公告日 2015-04-25.
发明人杨光,孙丽萍,刘建华. "A Process for Preparing High-Purity 4-Chloro-2-((methylthio)methyl)-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 109416566 A, 授权公告日 2015-11-23.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2016, 2247, (2), 148-162.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2018, 893, 8450-8462.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-2-((methylthio)methyl)-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine Using HRMS and NMR". Environ. Sci. Technol., 2022, 2319, 5389-5413.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2015, 586, 5008-5012.