Mueller T C, Johansson L, Schröder R. "Method for the Synthesis of Tert-butyl (E)-5-(3-methoxy-3-oxoprop-1-en-1-yl)-1H-pyrazolo[3,4-b]pyridine-1-carboxylate" [P]. European Patent, EP 3729408 A1, 2018-05-07.
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". Food Chem., 2020, 1812, 96-102.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2019, 2061, 2995-3014.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl (E)-5-(3-methoxy-3-oxoprop-1-en-1-yl)-1H-pyrazolo[3,4-b]pyridine-1-carboxylate Using HRMS and NMR". Anal. Chem., 2021, 1503, 451-480.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2016, 1094, (1), 6946-6957.