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