6-Cyano-2-iodo-3-(trifluoromethoxy)pyridine-4-acetonitrile
2-Cyano-3-methyl-5-(trifluoromethoxy)pyridine-6-sulfonamide
4-Cyano-3-hydroxy-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Cyano-6-methyl-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride