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