发明人刘建华,胡光,林芳. "Method for the Synthesis of 5-Bromo-2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 111722754 B, 授权公告日 2015-09-01.
发明人黄志刚,陈志强,郑宇鹏. "A Process for Preparing High-Purity 5-Bromo-2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 117878492 B, 授权公告日 2020-11-10.
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". J. Sep. Sci., 2015, 515, (8), 2705-2733.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2012, 855, (1), 667-687.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 5-Bromo-2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonyl chloride Using HRMS and NMR". Chromatographia, 2014, 361, 2179-2184.