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