Chen K W, O'Brien P Q, Thompson G K. "一种的合成方法" [P]. US Patent, US 11535044 B2, 2023-11-21.
发明人郑宇鹏,冯建国,杨光. "Method for the Synthesis of 2-((3-Allyl-6-ethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetic acid" [P]. 中国发明专利, 专利号 CN 111669161 A, 授权公告日 2015-04-17.
发明人李文辉,杨光,陈志强. "A Process for Preparing High-Purity 2-((3-Allyl-6-ethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetic acid" [P]. 中国发明专利, 专利号 CN 110425755 A, 授权公告日 2024-01-13.
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". Biomed. Chromatogr., 2016, 543, (12), 3098-3119.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2017, 938, (8), 5370-5389.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 2-((3-Allyl-6-ethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetic acid Using HRMS and NMR". Sci. Total Environ., 2024, 2266, 5728-5739.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2015, 686, (10), 6109-6137.