发明人罗永刚,郑宇鹏,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112729255 A, 授权公告日 2022-04-26.
发明人郭海燕,张德明,高志强. "Method for the Synthesis of 3-Ethyl 7-methyl 4-oxo-1,4-dihydroquinoline-3,7-dicarboxylate" [P]. 中国发明专利, 专利号 CN 109825190 A, 授权公告日 2024-05-12.
发明人冯建国,何建平,马晓峰. "A Process for Preparing High-Purity 3-Ethyl 7-methyl 4-oxo-1,4-dihydroquinoline-3,7-dicarboxylate" [P]. 中国发明专利, 专利号 CN 116077195 B, 授权公告日 2025-09-20.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2018, 1209, (6), 7357-7380.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2022, 692, (7), 6472-6475.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl 7-methyl 4-oxo-1,4-dihydroquinoline-3,7-dicarboxylate Using HRMS and NMR". Biomed. Chromatogr., 2014, 1253, 7678-7699.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2020, 499, 6617-6638.