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