5-Cyano-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-(Chloromethyl)-5-cyano-2-(trifluoromethoxy)pyridine-3-acetonitrile
3-Cyano-4-(fluoromethyl)-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Cyano-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-5-carboxaldehyde