Yamamoto T, Park J H, Lee S K. "一种的合成方法" [P]. US Patent, US 11803550 B2, 2019-04-20.
Brown S R, Williams B T, Stevens L M. "Method for the Synthesis of 3-Amino-1H-pyrazolo[4,3-b]pyridine-5-carboxylic acid methyl ester" [P]. US Patent, US 9658252 B2, 2021-12-19.
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". Chemosphere, 2018, 899, (2), 6129-6139.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2010, 1216, 3200-3210.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-Amino-1H-pyrazolo[4,3-b]pyridine-5-carboxylic acid methyl ester Using HRMS and NMR". J. Agric. Food Chem., 2020, 2313, (6), 4179-4182.