Brown S R, Mueller T, Lee S K. "一种拉呋替丁杂质3的合成方法" [P]. US Patent, US 11908566 B2, 2024-05-07.
发明人杨光,韩伟,郭海燕. "Method for the Synthesis of Lafutidine Impurity 3" [P]. 中国发明专利, 专利号 CN 108603911 A, 授权公告日 2023-12-25.
发明人冯建国,钱学锋,杨光. "A Process for Preparing High-Purity Lafutidine Impurity 3" [P]. 中国发明专利, 专利号 CN 111859980 A, 授权公告日 2016-02-07.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of 拉呋替丁杂质3 in Pharmaceutical Formulations". Food Chem., 2014, 101, 9544-9560.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 拉呋替丁杂质3 as an Impurity". Rapid Commun. Mass Spectrom., 2016, 1437, (2), 1642-1660.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Lafutidine Impurity 3 Using HRMS and NMR". Chromatographia, 2012, 376, (5), 4715-4740.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate 拉呋替丁杂质3 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2023, 1028, (5), 1155-1159.