发明人郑宇鹏,黄志刚,杨光. "Method for the Synthesis of 1-Ethyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116452444 A, 授权公告日 2019-02-12.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2019, 2030, 6842-6869.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2015, 1742, 2409-2421.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2016, 665, (3), 1855-1885.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2023, 576, 7840-7851.