2-Amino-4-(aminomethyl)-5-(difluoromethyl)-3-nitropyridine
2-Amino-5-(aminomethyl)-3-(difluoromethyl)pyridine-4-acetonitrile
Methyl 5-amino-3-(bromomethyl)-4-(difluoromethyl)pyridine-2-carboxylate
6-Amino-4-(aminomethyl)-3-(difluoromethyl)pyridine-2-acetonitrile