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