Ethyl 5-(chloromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-2-acetate
4-(Chloromethyl)-3-fluoro-5-nitro-2-(trifluoromethoxy)pyridine
2-(Bromomethyl)-6-fluoro-3-nitro-4-(trifluoromethoxy)pyridine
6-(Bromomethyl)-3-fluoro-4-nitro-2-(trifluoromethoxy)pyridine