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