Ethyl 3-cyano-2-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxylate
4-Cyano-3-methoxy-2-(trifluoromethoxy)pyridine-5-sulfonamide
2-Cyano-5-hydroxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
Ethyl 3-cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-5-carboxylate