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