发明人高志强,罗永刚,郑宇鹏. "Method for the Synthesis of 1,3-dimethyl-5-methylsulfonyl-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 108232566 A, 授权公告日 2019-09-18.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2011, 1022, 7384-7399.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2021, 384, 3152-3168.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 1,3-dimethyl-5-methylsulfonyl-pyrazolo[4,3-d]pyrimidine Using HRMS and NMR". Food Chem., 2010, 314, (6), 8895-8925.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2020, 1463, (1), 1009-1024.