发明人罗永刚,黄志刚,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116984787 A, 授权公告日 2016-05-20.
发明人马晓峰,郑宇鹏,沈红梅. "Method for the Synthesis of 1-Tert-butyl-3-methyl-6-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110916917 A, 授权公告日 2020-12-26.
发明人韩伟,高志强,何建平. "A Process for Preparing High-Purity 1-Tert-butyl-3-methyl-6-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110033093 B, 授权公告日 2018-06-09.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2020, 1533, 8553-8575.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2017, 1076, 382-404.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 1-Tert-butyl-3-methyl-6-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". Chemosphere, 2023, 1328, (3), 9867-9885.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2023, 475, 4361-4379.