发明人胡光,沈红梅,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109521055 A, 授权公告日 2016-12-17.
Park J H, Klinger H, Schröder R. "Method for the Synthesis of 1-Ethyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid" [P]. US Patent, US 11265956 B2, 2024-12-17.
发明人冯建国,唐晓军,王建平. "A Process for Preparing High-Purity 1-Ethyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113982064 A, 授权公告日 2022-09-14.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2023, 165, (10), 7151-7164.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2020, 2194, (6), 170-199.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid Using HRMS and NMR". Phytochemistry, 2022, 1877, 8719-8744.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2013, 1710, (7), 8080-8098.