6-(Chloromethyl)-4-iodo-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-(Bromomethyl)-3-iodo-2-(trifluoromethoxy)pyridine-4-acetic acid
3-(Bromomethyl)-5-iodo-4-(trifluoromethoxy)pyridine-2-acetic acid
3-(Bromomethyl)-2-iodo-6-(trifluoromethoxy)pyridine-5-acetic acid