发明人赵玉洁,钱学锋,刘建华. "Method for the Synthesis of 6-(furan-2-yl)-1-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111959312 A, 授权公告日 2017-03-16.
发明人沈红梅,高志强,孙丽萍. "A Process for Preparing High-Purity 6-(furan-2-yl)-1-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117190383 B, 授权公告日 2025-02-24.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 6-(furan-2-yl)-1-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid in Pharmaceutical Formulations". Sci. Total Environ., 2010, 1497, 4351-4363.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 6-(furan-2-yl)-1-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid as an Impurity". Anal. Chim. Acta, 2020, 997, (5), 3572-3586.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 6-(furan-2-yl)-1-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". Molecules, 2024, 1890, 6444-6466.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate 6-(furan-2-yl)-1-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2010, 1835, (12), 4113-4117.