3-Hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine-5-acetonitrile
6-Hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine-3-acetonitrile
2-Hydroxy-4-nitro-6-(trifluoromethoxy)pyridine-3-sulfonamide
2-Hydroxy-6-methoxy-3-(trifluoromethoxy)pyridine-4-acetonitrile