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