发明人韩伟,李文辉,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117962178 A, 授权公告日 2016-10-16.
发明人沈红梅,冯建国,陈志强. "Method for the Synthesis of Ethyl 2-(3,6-dimethyl-4-(trifluoromethyl)-1h-pyrazolo[3,4-b]pyridin-1-yl)acetate" [P]. 中国发明专利, 专利号 CN 116411714 B, 授权公告日 2025-03-04.
发明人王建平,李文辉,唐晓军. "A Process for Preparing High-Purity Ethyl 2-(3,6-dimethyl-4-(trifluoromethyl)-1h-pyrazolo[3,4-b]pyridin-1-yl)acetate" [P]. 中国发明专利, 专利号 CN 112006870 A, 授权公告日 2025-11-16.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2012, 860, (10), 607-623.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2013, 1867, 6665-6686.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(3,6-dimethyl-4-(trifluoromethyl)-1h-pyrazolo[3,4-b]pyridin-1-yl)acetate Using HRMS and NMR". J. Nat. Prod., 2025, 2083, 6745-6770.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2023, 750, (11), 6480-6483.