3-Hydroxy-4-nitro-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-(Bromomethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-4-methanol
3-Hydroxy-4-nitro-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-(Bromomethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-5-acetonitrile