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