2-(Bromomethyl)-6-fluoro-5-nitro-3-(trifluoromethoxy)pyridine
6-Fluoro-3-(fluoromethyl)-2-nitro-4-(trifluoromethoxy)pyridine
2-Fluoro-4-(fluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine
4-(Chloromethyl)-3-fluoro-6-nitro-2-(trifluoromethoxy)pyridine