2-Cyano-5-methoxy-4-(trifluoromethoxy)pyridine-3-sulfonamide
4-Cyano-3-(fluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine
3-(Chloromethyl)-4-cyano-5-(trifluoromethoxy)pyridine-2-methanol
4-Cyano-2-(fluoromethyl)-6-methyl-3-(trifluoromethoxy)pyridine