发明人李文辉,林芳,刘建华. "Method for the Synthesis of (6,7-Dihydroxy-4-methyl-2-oxo-2H-chromen-3-yl)-acetic acid" [P]. 中国发明专利, 专利号 CN 114398655 A, 授权公告日 2022-04-08.
发明人郭海燕,高志强,李文辉. "A Process for Preparing High-Purity (6,7-Dihydroxy-4-methyl-2-oxo-2H-chromen-3-yl)-acetic acid" [P]. 中国发明专利, 专利号 CN 111233468 A, 授权公告日 2021-02-10.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2024, 1248, 3344-3368.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2022, 1983, (11), 8721-8748.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of (6,7-Dihydroxy-4-methyl-2-oxo-2H-chromen-3-yl)-acetic acid Using HRMS and NMR". J. Agric. Food Chem., 2016, 379, 7743-7748.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2016, 2355, 8684-8700.