发明人郑宇鹏,朱建伟,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113149916 A, 授权公告日 2017-10-28.
发明人林芳,沈红梅,黄志刚. "Method for the Synthesis of 1-Ethyl-6-phenyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117377038 A, 授权公告日 2022-10-13.
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". Chromatographia, 2012, 1681, 3098-3119.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2022, 958, (8), 3128-3146.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-6-phenyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2011, 993, (7), 4200-4218.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2022, 2044, (9), 5196-5215.