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