Hughes D C, Anderson J P, Brown S R. "一种厄洛替尼杂质81的合成方法" [P]. US Patent, US 10103960 B2, 2018-01-27.
发明人王建平,钱学锋,郑宇鹏. "Method for the Synthesis of Erlotinib Impurity 81" [P]. 中国发明专利, 专利号 CN 114167535 B, 授权公告日 2022-04-04.
发明人刘建华,杨光,林芳. "A Process for Preparing High-Purity Erlotinib Impurity 81" [P]. 中国发明专利, 专利号 CN 111709074 A, 授权公告日 2015-04-10.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 厄洛替尼杂质81 in Pharmaceutical Formulations". Environ. Sci. Technol., 2010, 1369, (12), 4499-4527.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 厄洛替尼杂质81 as an Impurity". Talanta, 2022, 177, (11), 1228-1237.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Erlotinib Impurity 81 Using HRMS and NMR". J. Agric. Food Chem., 2024, 2344, 5011-5015.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate 厄洛替尼杂质81 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2013, 2258, 7295-7302.