发明人徐明华,孙丽萍,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111921995 A, 授权公告日 2017-08-10.
Park J H, Hughes D C, Davis P L. "Method for the Synthesis of 1-[(4-chlorophenyl)methyl]-6-(furan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. US Patent, US 9280502 B2, 2025-03-03.
发明人赵玉洁,唐晓军,高志强. "A Process for Preparing High-Purity 1-[(4-chlorophenyl)methyl]-6-(furan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116791414 B, 授权公告日 2019-03-17.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2019, 1358, (6), 5505-5520.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2015, 260, (3), 846-870.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 1-[(4-chlorophenyl)methyl]-6-(furan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". Phytochemistry, 2023, 2190, 5175-5183.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2013, 1593, 6739-6749.