5-Amino-3-(chloromethyl)-4-(difluoromethyl)pyridine-2-acetonitrile
3-Amino-2-(aminomethyl)-6-(difluoromethyl)pyridine-4-methanol
3-Amino-4-(aminomethyl)-5-(difluoromethyl)pyridine-2-methanol
3-Amino-2-(aminomethyl)-4-(difluoromethyl)pyridine-6-methanol