4-Hydroxy-2-nitro-6-(trifluoromethoxy)pyridine-3-acetonitrile
Ethyl 2-(chloromethyl)-5-fluoro-6-(trifluoromethoxy)pyridine-3-carboxylate
4-Hydroxy-2-nitro-3-(trifluoromethoxy)pyridine-6-acetonitrile
Ethyl 2-(chloromethyl)-5-fluoro-4-(trifluoromethoxy)pyridine-3-carboxylate