发明人沈红梅,黄志刚,朱建伟. "Method for the Synthesis of N,N-dimethyl-1H-pyrazolo[4,3-d]pyrimidin-7-amine" [P]. 中国发明专利, 专利号 CN 108498653 B, 授权公告日 2019-05-08.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2014, 476, (4), 2590-2594.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2024, 1870, (9), 5174-5185.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of N,N-dimethyl-1H-pyrazolo[4,3-d]pyrimidin-7-amine Using HRMS and NMR". Phytochemistry, 2020, 746, (8), 1968-1985.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2022, 1387, (9), 611-640.