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