5-(Bromomethyl)-3-methoxy-4-nitro-2-(trifluoromethoxy)pyridine
3-(Bromomethyl)-5-methoxy-2-nitro-4-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-5-iodo-3-(trifluoromethoxy)pyridine-6-methanol
2-(Fluoromethyl)-4-iodo-6-(trifluoromethoxy)pyridine-3-methanol