3-(Difluoromethyl)-2-iodopyridine-6-sulfonyl chloride
6-(Difluoromethyl)-2-iodopyridine-3-sulfonyl chloride
2-(Chloromethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-(Bromomethyl)-3-cyano-5-(difluoromethyl)pyridine
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