Klinger H, Kumar R, Roberts E F. "一种的合成方法" [P]. US Patent, US 11690475 B2, 2023-10-19.
发明人胡光,王建平,张德明. "Method for the Synthesis of 7-Cyclopropyl-2-(3,5-dimethoxyphenyl)pyrazolo[1,5-a]pyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113941087 A, 授权公告日 2020-10-08.
发明人高志强,胡光,唐晓军. "A Process for Preparing High-Purity 7-Cyclopropyl-2-(3,5-dimethoxyphenyl)pyrazolo[1,5-a]pyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115412553 A, 授权公告日 2018-05-05.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 128, 4021-4049.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2015, 1422, (5), 9312-9334.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 7-Cyclopropyl-2-(3,5-dimethoxyphenyl)pyrazolo[1,5-a]pyrimidine-5-carboxylic acid Using HRMS and NMR". Sci. Total Environ., 2014, 536, (6), 3929-3957.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2018, 1674, (4), 6357-6378.