2-Cyano-3-(difluoromethyl)-4-fluoro-6-(trifluoromethoxy)pyridine
3-Chloro-4-(chloromethyl)-2-methyl-6-(trifluoromethoxy)pyridine
3-Cyano-6-fluoro-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine
5-Cyano-2-fluoro-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine