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