Methyl 2-(chloromethyl)-5-iodo-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-methoxy-5-methyl-2-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-(chloromethyl)-5-iodo-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-methoxy-3-methyl-5-(trifluoromethoxy)pyridine-2-acetate