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