发明人杨光,郑宇鹏,钱学锋. "Method for the Synthesis of 2-Methyl-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine-4-thiol" [P]. 中国发明专利, 专利号 CN 117196542 B, 授权公告日 2025-08-15.
发明人韩伟,郑宇鹏,马晓峰. "A Process for Preparing High-Purity 2-Methyl-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine-4-thiol" [P]. 中国发明专利, 专利号 CN 109004641 B, 授权公告日 2018-05-19.
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". Biomed. Chromatogr., 2017, 1932, 597-619.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2024, 338, 154-158.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 2-Methyl-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine-4-thiol Using HRMS and NMR". Anal. Methods, 2011, 2248, 9761-9782.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2015, 1854, (11), 1460-1471.