5-Chloro-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-Fluoro-4-iodo-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Cyano-2-(fluoromethyl)-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
3-Fluoro-2-iodo-5-(trifluoromethoxy)pyridine-6-carboxaldehyde