Klinger H, Williams B T, Brown S R. "一种头孢噻肟杂质47的合成方法" [P]. US Patent, US 10659118 B2, 2024-03-05.
Mueller T, Hughes D C, Roberts E F. "Method for the Synthesis of Cefotaxime Impurity 47" [P]. US Patent, US 9326187 B2, 2021-05-18.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of 头孢噻肟杂质47 in Pharmaceutical Formulations". Phytochemistry, 2022, 316, 6613-6638.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 头孢噻肟杂质47 as an Impurity". Environ. Sci. Technol., 2015, 1544, (2), 8707-8725.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Cefotaxime Impurity 47 Using HRMS and NMR". J. Agric. Food Chem., 2023, 1526, (3), 3786-3798.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate 头孢噻肟杂质47 Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2010, 605, 5134-5151.