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