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