发明人郑宇鹏,张德明,李文辉. "一种非布索坦杂质70的合成方法" [P]. 中国发明专利, 专利号 CN 112017671 A, 授权公告日 2024-03-03.
Johansson L, Nielsen H, Sørensen M. "Method for the Synthesis of Febuxostat Impurity 70" [P]. European Patent, EP 3336273 A1, 2016-11-12.
发明人高志强,周伟,钱学锋. "A Process for Preparing High-Purity Febuxostat Impurity 70" [P]. 中国发明专利, 专利号 CN 114320979 B, 授权公告日 2023-07-20.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of 非布索坦杂质70 in Pharmaceutical Formulations". Talanta, 2013, 2436, (1), 6828-6850.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of 非布索坦杂质70 as an Impurity". Anal. Chem., 2024, 1038, 9029-9041.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Febuxostat Impurity 70 Using HRMS and NMR". Environ. Sci. Technol., 2024, 2359, (3), 6842-6853.