发明人唐晓军,陈志强,李文辉. "Method for the Synthesis of ethyl 4-oxo-7-(trifluoromethyl)chromene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 109007909 A, 授权公告日 2016-05-25.
发明人马晓峰,郑宇鹏,郭海燕. "A Process for Preparing High-Purity ethyl 4-oxo-7-(trifluoromethyl)chromene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111441674 B, 授权公告日 2022-10-28.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2016, 2323, (4), 4237-4262.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 2309, (9), 767-792.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 4-oxo-7-(trifluoromethyl)chromene-2-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2017, 1438, (1), 1303-1311.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2018, 1925, (4), 886-904.