2-(Bromomethyl)-5-cyano-3-iodo-6-(trifluoromethoxy)pyridine
5-Fluoro-4-nitro-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
5-Cyano-3-(fluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine
2-Fluoro-3-nitro-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine