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