Methyl 2-(bromomethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-4-carboxylate
3-(Bromomethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
5-(Bromomethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-4-carboxaldehyde
4-(Bromomethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxaldehyde