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