Ethyl 4-chloro-2-cyano-5-(trifluoromethoxy)pyridine-3-carboxylate
5-Cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetic acid
6-Chloro-4-(chloromethyl)-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-Cyano-3-hydroxy-6-(trifluoromethoxy)pyridine-2-acetic acid