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