Schröder R, Mueller T C, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3641063 A1, 2025-05-28.
发明人胡光,李文辉,黄志刚. "Method for the Synthesis of 7-Hydroxy-2-propyl-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one" [P]. 中国发明专利, 专利号 CN 111994395 A, 授权公告日 2025-03-19.
发明人冯建国,唐晓军,周伟. "A Process for Preparing High-Purity 7-Hydroxy-2-propyl-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one" [P]. 中国发明专利, 专利号 CN 117386156 A, 授权公告日 2025-10-22.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2014, 2411, (7), 347-362.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2014, 713, (8), 3654-3657.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 7-Hydroxy-2-propyl-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one Using HRMS and NMR". Anal. Chem., 2012, 673, (9), 5344-5360.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2013, 612, 3915-3940.