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