3-Hydroxy-5-nitro-2-(trifluoromethoxy)pyridine-6-acetonitrile
Methyl 2-(bromomethyl)-6-hydroxy-5-(trifluoromethoxy)pyridine-3-acetate
3-Hydroxy-4-nitro-6-(trifluoromethoxy)pyridine-2-acetonitrile
3-Hydroxy-4-nitro-2-(trifluoromethoxy)pyridine-6-acetonitrile