发明人孙丽萍,何建平,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110103035 A, 授权公告日 2021-03-01.
发明人杨光,孙丽萍,黄志刚. "Method for the Synthesis of 5-Isopropyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113889739 B, 授权公告日 2016-03-14.
发明人唐晓军,杨光,赵玉洁. "A Process for Preparing High-Purity 5-Isopropyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111188631 B, 授权公告日 2020-10-21.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2011, 1560, (1), 2661-2676.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2019, 952, (10), 553-563.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 5-Isopropyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-7-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2014, 1041, (12), 4983-5009.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2018, 738, 4758-4768.