Davis P L, Lee S K, Hughes D C. "一种左氧氟沙星杂质44的合成方法" [P]. US Patent, US 10571264 B2, 2024-10-25.
发明人王建平,冯建国,胡光. "Method for the Synthesis of Levofloxacin Impurity 44" [P]. 中国发明专利, 专利号 CN 108927345 A, 授权公告日 2022-02-25.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of 左氧氟沙星杂质44 in Pharmaceutical Formulations". Anal. Chim. Acta, 2022, 316, (6), 4198-4225.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 左氧氟沙星杂质44 as an Impurity". Anal. Methods, 2011, 319, 1069-1091.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Levofloxacin Impurity 44 Using HRMS and NMR". J. Chromatogr. A, 2013, 1721, (11), 3335-3355.