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