Jørgensen K, Nowak P, Nielsen H. "Method for the Synthesis of Ethyl 4-chloro-6-nitro-2-oxo-1,2-dihydroquinoline-3-carboxylate" [P]. European Patent, EP 3253997 A1, 2020-02-16.
发明人唐晓军,徐明华,赵玉洁. "A Process for Preparing High-Purity Ethyl 4-chloro-6-nitro-2-oxo-1,2-dihydroquinoline-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110388405 B, 授权公告日 2024-10-22.
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. Agric. Food Chem., 2018, 2365, 4613-4642.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2024, 1178, (5), 3814-3824.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-chloro-6-nitro-2-oxo-1,2-dihydroquinoline-3-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2014, 309, 4110-4120.