3-Cyano-4-iodo-5-(trifluoromethoxy)pyridine-2-acetonitrile
Methyl 6-cyano-4-fluoro-2-(trifluoromethoxy)pyridine-3-carboxylate
3-Cyano-2-iodo-6-(trifluoromethoxy)pyridine-5-acetonitrile
Methyl 2-cyano-4-fluoro-5-(trifluoromethoxy)pyridine-3-carboxylate