发明人马晓峰,郭海燕,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110040126 A, 授权公告日 2015-02-14.
发明人何建平,李文辉,周伟. "Method for the Synthesis of Afatinib Impurity 28" [P]. 中国发明专利, 专利号 CN 111130370 B, 授权公告日 2017-02-01.
发明人徐明华,黄志刚,陈志强. "A Process for Preparing High-Purity Afatinib Impurity 28" [P]. 中国发明专利, 专利号 CN 116100584 B, 授权公告日 2024-08-14.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2011, 2462, (11), 2224-2236.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2020, 958, 2220-2246.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Afatinib Impurity 28 Using HRMS and NMR". J. Sep. Sci., 2010, 882, (7), 3338-3368.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2016, 856, (12), 3393-3418.