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