发明人徐明华,孙丽萍,胡光. "Method for the Synthesis of 7-Bromo-3,4-dihydro-2h-1-benzopyran-3-one" [P]. 中国发明专利, 专利号 CN 109668539 B, 授权公告日 2021-03-15.
发明人孙丽萍,赵玉洁,韩伟. "A Process for Preparing High-Purity 7-Bromo-3,4-dihydro-2h-1-benzopyran-3-one" [P]. 中国发明专利, 专利号 CN 113123372 B, 授权公告日 2020-03-03.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2010, 2185, 8147-8157.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2014, 158, (12), 9129-9134.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 7-Bromo-3,4-dihydro-2h-1-benzopyran-3-one Using HRMS and NMR". Anal. Chim. Acta, 2016, 1938, 9909-9917.