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