发明人马晓峰,高志强,李文辉. "Method for the Synthesis of 6-Ethyl-4-hydroxy-3-(4-nitrobenzyl)-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione" [P]. 中国发明专利, 专利号 CN 116280503 A, 授权公告日 2016-02-06.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2020, 377, 5491-5499.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2015, 1673, 163-188.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 6-Ethyl-4-hydroxy-3-(4-nitrobenzyl)-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione Using HRMS and NMR". Phytochemistry, 2017, 2219, (2), 9775-9800.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2016, 148, (12), 7124-7135.