Schröder R, Fischer A B, Thompson G K. "一种瑞戈非尼EP 杂质A的合成方法" [P]. US Patent, US 9744449 B2, 2019-11-05.
发明人李文辉,张德明,孙丽萍. "Method for the Synthesis of Regorafenib EP Impurity A" [P]. 中国发明专利, 专利号 CN 108189053 A, 授权公告日 2015-01-03.
Davis P L, Anderson J P, Fischer A B. "A Process for Preparing High-Purity Regorafenib EP Impurity A" [P]. US Patent, US 9476319 B2, 2016-10-01.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 瑞戈非尼EP 杂质A in Pharmaceutical Formulations". J. Sep. Sci., 2017, 1832, 3754-3757.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of 瑞戈非尼EP 杂质A as an Impurity". J. Chromatogr. A, 2011, 2028, 1201-1227.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Regorafenib EP Impurity A Using HRMS and NMR". Molecules, 2018, 198, 2814-2826.