发明人刘建华,赵玉洁,韩伟. "Method for the Synthesis of 1-benzyl-3-methyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111956355 A, 授权公告日 2021-04-03.
Kumar R, Park J H, Davis P L. "A Process for Preparing High-Purity 1-benzyl-3-methyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. US Patent, US 10528860 B2, 2016-02-19.
参考文献 Literature
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Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-benzyl-3-methyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid as an Impurity". Chemosphere, 2014, 2410, 3083-3088.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 1-benzyl-3-methyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2019, 2282, (10), 2576-2587.