发明人郭海燕,徐明华,刘建华. "Method for the Synthesis of Ethyl 3-chloro-2-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 113439787 A, 授权公告日 2023-03-03.
Kumar R, Davis P L, Brown S R. "A Process for Preparing High-Purity Ethyl 3-chloro-2-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. US Patent, US 9927184 B2, 2020-02-19.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2024, 407, 4967-4990.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2013, 531, (11), 3398-3411.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-chloro-2-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate Using HRMS and NMR". Phytochemistry, 2022, 834, 4031-4038.