3-Hydroxy-6-iodo-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
4-(Bromomethyl)-2-hydroxy-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
4-Hydroxy-5-iodo-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-Hydroxy-2-iodo-5-(trifluoromethoxy)pyridine-3-carboxaldehyde