4-(Bromomethyl)-5-methyl-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-(Bromomethyl)-5-methyl-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-(Bromomethyl)-3-methyl-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
4-(Bromomethyl)-6-methyl-2-(trifluoromethoxy)pyridine-3-carboxaldehyde