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