3-(Bromomethyl)-4-iodo-2-nitro-5-(trifluoromethoxy)pyridine
3-(Chloromethyl)-4-(difluoromethyl)-5-iodo-2-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-iodo-5-nitro-6-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-iodo-4-nitro-5-(trifluoromethoxy)pyridine