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