6-Fluoro-3-nitro-2-(trifluoromethoxy)pyridine-4-acetonitrile
2-Fluoro-3-nitro-4-(trifluoromethoxy)pyridine-6-acetonitrile
4-Fluoro-3-nitro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
Ethyl 6-hydroxy-4-methoxy-3-(trifluoromethoxy)pyridine-2-acetate