Mueller T C, Björnsson E, Johansson L. "一种的合成方法" [P]. European Patent, EP 3884085 A1, 2023-07-12.
Stevens L M, Brown S R, Chen K W. "Method for the Synthesis of 2,5-Dichloro-4-(methylsulfonyl)benzoic Acid" [P]. US Patent, US 9712095 B2, 2022-07-23.
发明人李文辉,郑宇鹏,黄志刚. "A Process for Preparing High-Purity 2,5-Dichloro-4-(methylsulfonyl)benzoic Acid" [P]. 中国发明专利, 专利号 CN 111993781 A, 授权公告日 2023-10-08.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2011, 420, (10), 2110-2114.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2013, 2073, (7), 8208-8227.