发明人李文辉,朱建伟,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111098481 A, 授权公告日 2018-08-21.
发明人林芳,李文辉,徐明华. "Method for the Synthesis of Ethyl 4-((2,6-dimethylpyrimidin-4-yl)oxy)-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 109112765 B, 授权公告日 2025-06-06.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2020, 1633, (11), 7674-7697.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2020, 1150, (7), 4529-4543.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-((2,6-dimethylpyrimidin-4-yl)oxy)-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate Using HRMS and NMR". Anal. Methods, 2016, 2089, (12), 991-1019.