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