Mueller T C, Jørgensen K, Schröder R. "Method for the Synthesis of 9-Chloro-5-methyl-5H-thiochromeno[4,3-d]pyrimidin-2-amine" [P]. European Patent, EP 3567343 A1, 2019-04-25.
发明人杨光,赵玉洁,黄志刚. "A Process for Preparing High-Purity 9-Chloro-5-methyl-5H-thiochromeno[4,3-d]pyrimidin-2-amine" [P]. 中国发明专利, 专利号 CN 113919059 B, 授权公告日 2018-08-28.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2015, 1443, (8), 1842-1871.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2019, 1063, 4809-4816.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 9-Chloro-5-methyl-5H-thiochromeno[4,3-d]pyrimidin-2-amine Using HRMS and NMR". Molecules, 2015, 1375, 2142-2154.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2014, 278, (7), 5571-5576.