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
3-Cyano-4-(difluoromethyl)-2-nitropyridine-6-sulfonyl chloride