Martínez F, Johansson L, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3677311 A1, 2022-09-21.
Chen K W, Johnson M A, Brown S R. "Method for the Synthesis of 7-Bromo-4-chloro-2-(methylthio)pyrazolo[1,5-a][1,3,5]triazine" [P]. US Patent, US 11223919 B2, 2017-08-27.
发明人赵玉洁,钱学锋,沈红梅. "A Process for Preparing High-Purity 7-Bromo-4-chloro-2-(methylthio)pyrazolo[1,5-a][1,3,5]triazine" [P]. 中国发明专利, 专利号 CN 112530630 B, 授权公告日 2025-05-23.
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. Chim. Acta, 2021, 1607, (10), 3015-3025.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2021, 912, 2149-2157.