发明人李文辉,冯建国,钱学锋. "Method for the Synthesis of 1-Isopropyl-1H-pyrazolo[3,4-b]pyridine-5-carbonitrile" [P]. 中国发明专利, 专利号 CN 109131451 A, 授权公告日 2024-03-10.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2016, 1541, 4444-4456.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2021, 455, 3566-3573.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 1-Isopropyl-1H-pyrazolo[3,4-b]pyridine-5-carbonitrile Using HRMS and NMR". Molecules, 2014, 970, (12), 2991-3014.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2024, 2305, 8490-8501.