Kumar R, Fischer A B, Lee S K. "一种的合成方法" [P]. US Patent, US 11951844 B2, 2019-09-13.
发明人徐明华,钱学锋,林芳. "Method for the Synthesis of 2-(4-Fluorophenyl)-4-(methylthio)pyrazolo[1,5-a]pyrazine" [P]. 中国发明专利, 专利号 CN 113771353 B, 授权公告日 2017-09-16.
Johansson L, Jørgensen K, Sørensen M. "A Process for Preparing High-Purity 2-(4-Fluorophenyl)-4-(methylthio)pyrazolo[1,5-a]pyrazine" [P]. European Patent, EP 3617899 A1, 2024-08-07.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2025, 290, 144-164.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2013, 1413, (5), 1829-1848.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 2-(4-Fluorophenyl)-4-(methylthio)pyrazolo[1,5-a]pyrazine Using HRMS and NMR". Talanta, 2019, 369, (3), 3083-3097.