3-Cyano-4-(difluoromethyl)-5-nitropyridine-2-sulfonyl chloride
4-Cyano-5-(difluoromethyl)-2-nitropyridine-3-sulfonamide
5-(Chloromethyl)-2-cyano-3-(difluoromethyl)pyridine-6-methanol
3-(Aminomethyl)-2-cyano-4-(difluoromethyl)-6-(trifluoromethyl)pyridine