发明人唐晓军,王建平,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110748812 A, 授权公告日 2021-10-06.
Sørensen M, Nielsen H, Johansson L. "Method for the Synthesis of Ethyl 7-(2,6-dimethylpyridin-4-yl)-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylate" [P]. European Patent, EP 3723492 A1, 2022-12-28.
发明人何建平,冯建国,刘建华. "A Process for Preparing High-Purity Ethyl 7-(2,6-dimethylpyridin-4-yl)-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109951956 B, 授权公告日 2024-03-18.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2021, 2460, 5985-5996.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2014, 578, (11), 1994-2009.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 7-(2,6-dimethylpyridin-4-yl)-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylate Using HRMS and NMR". Chromatographia, 2018, 1913, 4776-4798.