发明人韩伟,林芳,马晓峰. "Method for the Synthesis of 6-Chloro-4-(chloromethyl)-7-methyl-2H-1-benzopyran-2-one" [P]. 中国发明专利, 专利号 CN 111739999 B, 授权公告日 2015-05-10.
发明人周伟,郭海燕,李文辉. "A Process for Preparing High-Purity 6-Chloro-4-(chloromethyl)-7-methyl-2H-1-benzopyran-2-one" [P]. 中国发明专利, 专利号 CN 113703384 A, 授权公告日 2019-10-13.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2014, 2153, 2643-2669.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2019, 545, 9538-9547.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 6-Chloro-4-(chloromethyl)-7-methyl-2H-1-benzopyran-2-one Using HRMS and NMR". J. Chromatogr. A, 2021, 1655, (3), 1817-1835.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2017, 1636, 711-718.