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