发明人朱建伟,徐明华,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112201871 A, 授权公告日 2016-03-08.
发明人杨光,周伟,冯建国. "Method for the Synthesis of Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117567082 B, 授权公告日 2018-09-03.
发明人刘建华,郑宇鹏,马晓峰. "A Process for Preparing High-Purity Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108734353 B, 授权公告日 2022-12-21.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2010, 232, (3), 2710-2738.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2012, 212, (1), 3629-3639.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate Using HRMS and NMR". Anal. Methods, 2014, 2471, (6), 3996-4012.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2021, 344, (12), 3923-3938.