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