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