5-Chloro-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Chloro-5-(chloromethyl)-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Cyano-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Cyano-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxaldehyde