2-Chloro-5-pyridinesulfonyl chloride
6-Chloro-5-fluoropyridine-3-sulfonyl chloride
6-Chloro-4-methylpyridine-3-sulfonyl chloride
6-Chloro-5-(trifluoromethyl)pyridine-3-sulfonyl chloride
5,6-Dichloropyridine-3-sulfonyl chloride
