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