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