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