发明人赵玉洁,沈红梅,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112204122 A, 授权公告日 2024-05-08.
发明人马晓峰,徐明华,杨光. "Method for the Synthesis of 7-Methylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115362240 B, 授权公告日 2023-05-18.
发明人马晓峰,罗永刚,朱建伟. "A Process for Preparing High-Purity 7-Methylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115444482 A, 授权公告日 2022-04-20.
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. Sep. Sci., 2016, 2247, (12), 4475-4503.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2024, 618, 6033-6036.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 7-Methylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid Using HRMS and NMR". Molecules, 2014, 1660, (10), 1773-1785.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2016, 1616, 9484-9488.