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