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