3-Iodo-6-nitro-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
4-Iodo-2-nitro-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
3-(Chloromethyl)-2-iodo-5-methoxy-6-(trifluoromethoxy)pyridine
2-(Bromomethyl)-5-iodo-4-methyl-3-(trifluoromethoxy)pyridine