2-Cyano-3-(difluoromethyl)-4-nitropyridine-6-carbonyl chloride
5-(Bromomethyl)-3-cyano-2-(difluoromethyl)pyridine-4-carboxylic acid
Ethyl 4-cyano-3-(difluoromethyl)-6-nitropyridine-2-acetate
4-Cyano-3-(difluoromethyl)-6-nitropyridine-2-sulfonyl chloride