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