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