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