6-Cyano-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Cyano-3-fluoro-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine
3-(Chloromethyl)-6-cyano-2-fluoro-5-(trifluoromethoxy)pyridine
6-Cyano-2-fluoro-3-methyl-4-(trifluoromethoxy)pyridine