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