6-(Chloromethyl)-3-cyano-4-hydroxy-2-(trifluoromethoxy)pyridine
6-(Chloromethyl)-4-cyano-3-hydroxy-2-(trifluoromethoxy)pyridine
3-Cyano-6-fluoro-4-iodo-2-(trifluoromethoxy)pyridine
4-Cyano-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid