发明人刘建华,冯建国,高志强. "Method for the Synthesis of 6,8-DIfluoro-4-oxo-1,4-dihydroquinoline-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110705053 B, 授权公告日 2024-12-18.
发明人赵玉洁,孙丽萍,徐明华. "A Process for Preparing High-Purity 6,8-DIfluoro-4-oxo-1,4-dihydroquinoline-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109561249 A, 授权公告日 2017-07-28.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2021, 1673, (7), 3501-3505.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2022, 479, (4), 7505-7514.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 6,8-DIfluoro-4-oxo-1,4-dihydroquinoline-2-carboxylic acid Using HRMS and NMR". Chromatographia, 2010, 1276, (7), 3654-3674.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2019, 2040, 6263-6267.