Johansson L, Martínez F, Nowak P. "一种的合成方法" [P]. European Patent, EP 3539235 A1, 2018-12-06.
发明人马晓峰,李文辉,杨光. "Method for the Synthesis of 4,5,6,7-Tetrahydro-1H-pyrazolo[3,4-c]pyridine, 97%" [P]. 中国发明专利, 专利号 CN 116431395 A, 授权公告日 2021-12-14.
发明人刘建华,马晓峰,胡光. "A Process for Preparing High-Purity 4,5,6,7-Tetrahydro-1H-pyrazolo[3,4-c]pyridine, 97%" [P]. 中国发明专利, 专利号 CN 115098443 B, 授权公告日 2022-02-07.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2017, 2346, 6269-6286.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2020, 2426, (10), 3814-3821.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4,5,6,7-Tetrahydro-1H-pyrazolo[3,4-c]pyridine, 97% Using HRMS and NMR". Molecules, 2016, 1686, 4418-4429.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2020, 924, 4562-4575.