4-Cyano-3-fluoro-5-(trifluoromethoxy)pyridine-2-sulfonamide
2-Cyano-3-(difluoromethyl)-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
6-Cyano-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-methanol
3-Fluoro-2-methoxy-6-(trifluoromethoxy)pyridine-4-acetonitrile