发明人高志强,徐明华,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111385557 A, 授权公告日 2024-06-14.
发明人刘建华,林芳,李文辉. "Method for the Synthesis of 4-chloro-1H-pyrazolo[3,4-b]pyridine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109354506 B, 授权公告日 2019-04-17.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2021, 2030, 5823-5834.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2014, 1599, (1), 336-356.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-chloro-1H-pyrazolo[3,4-b]pyridine-6-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2016, 900, (1), 4057-4082.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2018, 168, 9842-9861.