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