3-Cyano-5-iodo-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
4-Cyano-3-hydroxy-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
4-Cyano-2-hydroxy-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
3-Cyano-5-iodo-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine