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