2-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-5-acetic acid
5-Cyano-2-(difluoromethyl)-3-fluoro-6-(trifluoromethoxy)pyridine
4-Cyano-3-(difluoromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine
4-(Bromomethyl)-2-cyano-3-fluoro-5-(trifluoromethoxy)pyridine