Kumar R, Davis P L, Stevens L M. "一种的合成方法" [P]. US Patent, US 9838187 B2, 2025-10-07.
发明人钱学锋,郑宇鹏,胡光. "Method for the Synthesis of 1-Methyl-4-phenyl-1h-pyrazolo[3,4-b]pyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111581689 B, 授权公告日 2016-02-15.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2022, 2434, 1498-1509.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2017, 1364, (10), 5089-5101.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-4-phenyl-1h-pyrazolo[3,4-b]pyridine-3-carboxylic acid Using HRMS and NMR". J. Agric. Food Chem., 2025, 945, (1), 9055-9083.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2025, 2424, 4806-4835.