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