Ethyl 2-iodo-3-nitro-6-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 2-iodo-3-nitro-4-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 3-iodo-6-nitro-2-(trifluoromethoxy)pyridine-5-carboxylate
3-(Difluoromethyl)-5-iodo-2-methyl-6-(trifluoromethoxy)pyridine