4-(Bromomethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
Methyl 2-hydroxy-4-iodo-6-(trifluoromethoxy)pyridine-3-carboxylate
4-(Bromomethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
3-Hydroxy-5-nitro-2-(trifluoromethoxy)pyridine-6-carboxaldehyde