发明人赵玉洁,张德明,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114961750 A, 授权公告日 2021-06-10.
发明人林芳,陈志强,韩伟. "Method for the Synthesis of 6-Methylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116997951 A, 授权公告日 2021-06-15.
Park J H, Johnson M A, O'Brien P Q. "A Process for Preparing High-Purity 6-Methylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. US Patent, US 11784211 B2, 2021-07-26.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2015, 961, 4178-4196.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2012, 1813, (10), 8529-8532.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 6-Methylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2015, 2029, (1), 1315-1322.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2023, 215, 8540-8557.