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