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