发明人王建平,黄志刚,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114832099 A, 授权公告日 2024-02-20.
发明人张德明,赵玉洁,罗永刚. "Method for the Synthesis of 3-Cyclopropyl-1-(4-fluorophenyl)-6-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115646917 A, 授权公告日 2023-10-28.
发明人黄志刚,赵玉洁,陈志强. "A Process for Preparing High-Purity 3-Cyclopropyl-1-(4-fluorophenyl)-6-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109355148 A, 授权公告日 2015-12-10.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2016, 2291, (11), 2925-2932.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2016, 2051, 6865-6881.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 3-Cyclopropyl-1-(4-fluorophenyl)-6-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". Chromatographia, 2021, 740, (1), 7066-7086.