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