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