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