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