Thompson G K, Lee S K, Davis P L. "一种的合成方法" [P]. US Patent, US 9065812 B2, 2021-06-15.
发明人冯建国,赵玉洁,刘建华. "Method for the Synthesis of 3-Chloro-5-cyclopropyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113423001 B, 授权公告日 2020-03-28.
发明人冯建国,朱建伟,高志强. "A Process for Preparing High-Purity 3-Chloro-5-cyclopropyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110127406 B, 授权公告日 2018-06-03.
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". Molecules, 2010, 2184, (11), 3164-3187.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2022, 816, 3298-3302.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 3-Chloro-5-cyclopropyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid Using HRMS and NMR". Environ. Sci. Technol., 2013, 292, (2), 2853-2856.