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