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