5-(Bromomethyl)-3-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine
4-(Chloromethyl)-3-fluoro-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Hydroxy-2-nitro-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-Hydroxy-2-nitro-4-(trifluoromethoxy)pyridine-5-carboxaldehyde