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