3-Cyano-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-carboxylic acid
6-Hydroxy-3-iodo-4-(trifluoromethoxy)pyridine-2-acetonitrile
6-Cyano-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-methanol
4-Cyano-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxylic acid