Anderson J P, O'Brien P Q, Roberts E F. "一种的合成方法" [P]. US Patent, US 10265641 B2, 2021-12-24.
Johansson L, Lefèvre J P, Kowalski A. "Method for the Synthesis of 2-methyl-2H-pyrazolo[3,4-b]pyridin-5-amine" [P]. European Patent, EP 3212779 A1, 2021-10-02.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2014, 835, 3914-3929.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2016, 1355, 1436-1455.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 2-methyl-2H-pyrazolo[3,4-b]pyridin-5-amine Using HRMS and NMR". J. Chromatogr. A, 2014, 1129, (8), 2395-2410.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2023, 1672, 1384-1387.