3-Cyano-5-hydroxy-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Methyl 3-cyano-4-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 5-(bromomethyl)-4-fluoro-2-(trifluoromethoxy)pyridine-3-acetate
3-Cyano-4-hydroxy-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride