2-Bromo-3-hydroxy-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Bromo-3-chloro-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine
3-Bromo-6-hydroxy-2-(trifluoromethoxy)pyridine-4-sulfonamide
3-Bromo-6-chloro-2-(chloromethyl)-5-(trifluoromethoxy)pyridine