6-Chloro-4-cyano-2-(difluoromethyl)pyridine-3-carboxylic acid
4-Chloro-2-(difluoromethyl)-3-nitropyridine-6-sulfonyl chloride
Ethyl 3-chloro-2-cyano-5-(difluoromethyl)pyridine-4-carboxylate
3-Chloro-5-(difluoromethyl)-6-nitropyridine-2-sulfonyl chloride