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