发明人陈志强,赵玉洁,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113971116 A, 授权公告日 2017-09-21.
Stevens L M, Lee S K, Yamamoto T. "Method for the Synthesis of 5-Methyl-7-(pentafluoroethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. US Patent, US 11756404 B2, 2015-07-22.
发明人赵玉洁,李文辉,黄志刚. "A Process for Preparing High-Purity 5-Methyl-7-(pentafluoroethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117608076 B, 授权公告日 2022-10-03.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2018, 1649, (2), 3420-3447.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2019, 341, (8), 4086-4092.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 5-Methyl-7-(pentafluoroethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2012, 2245, 5832-5840.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2018, 1647, (9), 5669-5699.