6-Cyano-4-(difluoromethyl)-3-nitropyridine-2-sulfonamide
Methyl 2-cyano-3-(difluoromethyl)-6-methylpyridine-4-carboxylate
2-(Aminomethyl)-5-cyano-3-(difluoromethyl)-4-(trifluoromethyl)pyridine
Methyl 4-cyano-2-(difluoromethyl)-3-methylpyridine-5-acetate