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