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