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