发明人刘建华,郭海燕,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108870358 A, 授权公告日 2015-09-24.
Lefèvre J P, Kowalski A, Martínez F. "Method for the Synthesis of 1-Ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. European Patent, EP 3131573 A1, 2016-01-14.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2012, 586, (1), 4814-4839.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2018, 1158, (4), 9716-9744.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Using HRMS and NMR". Chemosphere, 2013, 1131, 3759-3768.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2019, 160, 9970-9975.