发明人沈红梅,林芳,刘建华. "Method for the Synthesis of Levofloxacin Desethylene Diformyl Impurity" [P]. 中国发明专利, 专利号 CN 108653538 A, 授权公告日 2021-11-05.
发明人郭海燕,徐明华,高志强. "A Process for Preparing High-Purity Levofloxacin Desethylene Diformyl Impurity" [P]. 中国发明专利, 专利号 CN 113395083 B, 授权公告日 2016-11-02.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 左氧氟沙星脱乙烯二甲酰基杂质 in Pharmaceutical Formulations". Food Chem., 2015, 624, 7848-7861.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 左氧氟沙星脱乙烯二甲酰基杂质 as an Impurity". Sci. Total Environ., 2017, 467, (2), 4935-4941.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Levofloxacin Desethylene Diformyl Impurity Using HRMS and NMR". Chromatographia, 2020, 1899, (4), 4522-4532.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate 左氧氟沙星脱乙烯二甲酰基杂质 Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2025, 1725, (12), 1271-1299.