Johansson L, Lefèvre J P, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3521714 A1, 2016-04-12.
发明人唐晓军,冯建国,胡光. "Method for the Synthesis of 5-(1-Ethyl-3-methyl-1h-pyrazol-4-yl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine" [P]. 中国发明专利, 专利号 CN 111232548 B, 授权公告日 2025-01-04.
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". Anal. Chem., 2013, 2212, (1), 3955-3978.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2016, 2144, (3), 9614-9636.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 5-(1-Ethyl-3-methyl-1h-pyrazol-4-yl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine Using HRMS and NMR". J. Pharm. Biomed. Anal., 2018, 650, 7600-7618.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2012, 2034, (3), 2349-2374.