2-Iodo-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
6-(Difluoromethyl)-3-methoxypyridine-2-sulfonyl chloride
3-Cyano-2-(difluoromethyl)-6-iodopyridine-4-methanol
3-Cyano-5-methoxy-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
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