2-Amino-4-(chloromethyl)-5-(trifluoromethoxy)pyridine-3-acetonitrile
2-Amino-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetonitrile
2-Amino-5-methoxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
2-Amino-4-methoxy-6-(trifluoromethoxy)pyridine-3-acetonitrile