发明人马晓峰,胡光,刘建华. "Method for the Synthesis of 4-Chloro-2-isopropyl-6,7-dihydro-5h-cyclopenta[4,5]thieno[2,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 111072060 A, 授权公告日 2017-01-07.
Roberts E F, Davis P L, Kumar R. "A Process for Preparing High-Purity 4-Chloro-2-isopropyl-6,7-dihydro-5h-cyclopenta[4,5]thieno[2,3-d]pyrimidine" [P]. US Patent, US 11156959 B2, 2021-10-06.
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., 2018, 1370, 4687-4708.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2010, 478, 5839-5857.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-2-isopropyl-6,7-dihydro-5h-cyclopenta[4,5]thieno[2,3-d]pyrimidine Using HRMS and NMR". Phytochemistry, 2012, 2270, (10), 9938-9963.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2015, 2400, 9611-9639.