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