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