发明人唐晓军,郭海燕,高志强. "Method for the Synthesis of N-butyl-5-chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine" [P]. 中国发明专利, 专利号 CN 111508344 A, 授权公告日 2022-11-05.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2014, 2227, (1), 1444-1454.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2013, 243, (2), 7824-7841.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of N-butyl-5-chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine Using HRMS and NMR". J. Chromatogr. A, 2022, 1415, 5652-5664.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2014, 2148, 2087-2101.