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