发明人高志强,王建平,郭海燕. "Method for the Synthesis of Ethyl 5-bromo-2H-pyrazolo[3,4-b]pyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116738105 A, 授权公告日 2019-08-22.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2013, 1928, 6043-6064.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2022, 1040, 1456-1461.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-bromo-2H-pyrazolo[3,4-b]pyridine-3-carboxylate Using HRMS and NMR". Chromatographia, 2016, 2333, (1), 430-457.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2016, 1971, (6), 1959-1977.