Ethyl 2-(chloromethyl)-5-iodo-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-(chloromethyl)-5-iodo-4-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 4-(bromomethyl)-3-iodo-2-(trifluoromethoxy)pyridine-6-acetate
Methyl 5-(chloromethyl)-3-iodo-2-(trifluoromethoxy)pyridine-4-acetate