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