Nielsen H, Jørgensen K, Rossi M. "一种的合成方法" [P]. European Patent, EP 3475651 A1, 2019-01-18.
Kowalski A, Jørgensen K, Sørensen M. "Method for the Synthesis of Cefotaxime Impurity 5" [P]. European Patent, EP 3455698 A1, 2021-05-14.
Park J H, Schröder R, Hughes D C. "A Process for Preparing High-Purity Cefotaxime Impurity 5" [P]. US Patent, US 11493095 B2, 2015-12-14.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2013, 1813, 7963-7980.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2019, 844, (9), 1425-1432.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Cefotaxime Impurity 5 Using HRMS and NMR". Chromatographia, 2016, 758, (6), 6661-6679.