发明人张德明,陈志强,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109641610 A, 授权公告日 2021-11-20.
发明人林芳,沈红梅,冯建国. "Method for the Synthesis of 3-nitro-1H-pyrazolo[3,4-b]pyridine" [P]. 中国发明专利, 专利号 CN 112733138 B, 授权公告日 2024-01-07.
发明人陈志强,郭海燕,孙丽萍. "A Process for Preparing High-Purity 3-nitro-1H-pyrazolo[3,4-b]pyridine" [P]. 中国发明专利, 专利号 CN 116891845 A, 授权公告日 2024-09-07.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2012, 749, (11), 6726-6740.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2025, 953, (6), 4208-4237.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-nitro-1H-pyrazolo[3,4-b]pyridine Using HRMS and NMR". Talanta, 2021, 2440, (11), 9148-9172.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2013, 91, 3024-3031.