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