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