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