Yamamoto T, Roberts E F, Brown S R. "一种的合成方法" [P]. US Patent, US 10978916 B2, 2016-11-12.
发明人钱学锋,罗永刚,杨光. "Method for the Synthesis of 8-Chloro-1-cyclopropyl-6-fluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117986351 A, 授权公告日 2022-12-24.
发明人郑宇鹏,何建平,唐晓军. "A Process for Preparing High-Purity 8-Chloro-1-cyclopropyl-6-fluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116385336 A, 授权公告日 2025-08-04.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2018, 1892, (4), 8683-8698.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2010, 2414, (5), 9537-9548.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 8-Chloro-1-cyclopropyl-6-fluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2012, 2430, (3), 7544-7551.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2018, 647, (2), 5389-5403.