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