Lee S K, Klinger H, Yamamoto T. "Method for the Synthesis of 3-Iodo-5-methylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid" [P]. US Patent, US 9773667 B2, 2022-07-04.
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". Phytochemistry, 2019, 1729, 8067-8070.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2017, 2170, 2869-2872.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 3-Iodo-5-methylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid Using HRMS and NMR". J. Agric. Food Chem., 2016, 1233, 7860-7880.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2012, 1537, (6), 5176-5203.