Ethyl 3-bromo-6-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate
2-Bromo-3-hydroxy-6-(trifluoromethoxy)pyridine-4-sulfonamide
4-Bromo-3-hydroxy-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
5-Bromo-4-(fluoromethyl)-3-methyl-2-(trifluoromethoxy)pyridine