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