2-Cyano-6-hydroxy-4-(trifluoromethoxy)pyridine-3-methanol
Methyl 5-cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-cyano-3-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 4-cyano-6-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylate