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