Rossi M, Björnsson E, Kowalski A. "Method for the Synthesis of N,N-dimethyl-5H,6H,7H-cyclopenta[d]pyrimidin-4-amine" [P]. European Patent, EP 3035929 A1, 2020-07-03.
发明人李文辉,何建平,钱学锋. "A Process for Preparing High-Purity N,N-dimethyl-5H,6H,7H-cyclopenta[d]pyrimidin-4-amine" [P]. 中国发明专利, 专利号 CN 109778857 A, 授权公告日 2025-01-06.
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". Chromatographia, 2021, 719, 4738-4750.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2011, 1588, (5), 9600-9611.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of N,N-dimethyl-5H,6H,7H-cyclopenta[d]pyrimidin-4-amine Using HRMS and NMR". J. Pharm. Biomed. Anal., 2012, 2205, (3), 2953-2982.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2016, 2163, 6538-6546.