Anderson J P, Brown S R, Stevens L M. "Method for the Synthesis of methyl 5-(chlorosulfonyl)-2,3-difluorobenzoate" [P]. US Patent, US 9594215 B2, 2017-11-11.
Mueller T, Fischer A B, Patel M V. "A Process for Preparing High-Purity methyl 5-(chlorosulfonyl)-2,3-difluorobenzoate" [P]. US Patent, US 9022138 B2, 2018-01-01.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of methyl 5-(chlorosulfonyl)-2,3-difluorobenzoate in Pharmaceutical Formulations". Food Chem., 2025, 691, 5599-5628.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of methyl 5-(chlorosulfonyl)-2,3-difluorobenzoate as an Impurity". Phytochemistry, 2011, 473, 9040-9062.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of methyl 5-(chlorosulfonyl)-2,3-difluorobenzoate Using HRMS and NMR". J. Agric. Food Chem., 2011, 864, 1174-1199.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate methyl 5-(chlorosulfonyl)-2,3-difluorobenzoate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2015, 1036, (6), 8649-8676.