O'Brien P Q, Schröder R, Chen K W. "一种的合成方法" [P]. US Patent, US 9499840 B2, 2019-07-06.
发明人王建平,陈志强,郑宇鹏. "Method for the Synthesis of 4-Chloro-1-(3-chloropyridin-2-yl)-1H-pyrazolo[3,4-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 108440573 B, 授权公告日 2019-01-12.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2024, 2122, (9), 4148-4152.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2024, 870, 8537-8556.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-1-(3-chloropyridin-2-yl)-1H-pyrazolo[3,4-d]pyrimidine Using HRMS and NMR". Anal. Chim. Acta, 2014, 1146, (11), 332-343.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2020, 2177, (5), 3194-3200.