发明人孙丽萍,林芳,刘建华. "Method for the Synthesis of Regorafenib EP Impurity E" [P]. 中国发明专利, 专利号 CN 117564934 A, 授权公告日 2015-11-24.
发明人郑宇鹏,李文辉,韩伟. "A Process for Preparing High-Purity Regorafenib EP Impurity E" [P]. 中国发明专利, 专利号 CN 108965065 B, 授权公告日 2021-03-10.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 瑞戈非尼EP杂质E in Pharmaceutical Formulations". Anal. Methods, 2013, 2433, 8032-8047.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 瑞戈非尼EP杂质E as an Impurity". J. Sep. Sci., 2024, 2103, 6878-6881.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Regorafenib EP Impurity E Using HRMS and NMR". J. Agric. Food Chem., 2021, 1662, (2), 4306-4332.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate 瑞戈非尼EP杂质E Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2011, 172, 6444-6453.