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