Ethyl 3-(bromomethyl)-4-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-(bromomethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-(bromomethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-(bromomethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylate