5-Chloro-3-cyano-4-(difluoromethyl)pyridine-2-sulfonyl chloride
4-Chloro-3-(difluoromethyl)-2-fluoropyridine-5-carboxylic acid
3-Chloro-5-cyano-2-(difluoromethyl)pyridine-6-sulfonyl chloride
4-Chloro-2-(difluoromethyl)-6-fluoropyridine-3-carboxylic acid