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