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