4-Bromo-3-hydroxy-2-(trifluoromethoxy)pyridine-6-sulfonamide
3-Bromo-2-cyano-4-(trifluoromethoxy)pyridine-5-sulfonamide
4-Bromo-3-fluoro-2-methyl-5-(trifluoromethoxy)pyridine
6-Bromo-3-cyano-4-(trifluoromethoxy)pyridine-2-sulfonamide
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