2-Chloro-4-cyano-6-(trifluoromethoxy)pyridine-3-acetic acid
5-Cyano-4-(difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine
2,3-Diiodo-4-(trifluoromethoxy)pyridine-5-acetonitrile
3-(Difluoromethyl)-6-hydroxy-2-(trifluoromethyl)pyridine-4-acetic acid