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