3-Cyano-5-methoxy-6-(trifluoromethoxy)pyridine-2-acetic acid
5-Chloro-2-methyl-4-(trifluoromethoxy)pyridine-3-acetonitrile
4-Chloro-3-(chloromethyl)-5-(trifluoromethoxy)pyridine-2-acetonitrile
4-Chloro-5-methyl-2-(trifluoromethoxy)pyridine-3-acetonitrile