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