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