2-(Difluoromethyl)-4-fluoro-6-iodopyridine-3-sulfonyl chloride
2-(Difluoromethyl)-4-fluoro-5-iodopyridine-3-sulfonyl chloride
2-(Difluoromethyl)-4-fluoro-3-iodopyridine-5-sulfonyl chloride
2-(Difluoromethyl)-3-fluoro-6-iodopyridine-4-sulfonyl chloride