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