发明人张德明,郭海燕,陈志强. "Method for the Synthesis of 6-Fluoro-7-methyl-4-oxochroman-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109178459 B, 授权公告日 2017-07-18.
发明人赵玉洁,刘建华,林芳. "A Process for Preparing High-Purity 6-Fluoro-7-methyl-4-oxochroman-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115365679 A, 授权公告日 2025-10-17.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2011, 1949, (4), 9819-9831.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2011, 2171, (8), 9009-9032.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 6-Fluoro-7-methyl-4-oxochroman-2-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2023, 414, (8), 2302-2323.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2017, 1769, 7606-7618.