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