4,6-Dichloro-3-(difluoromethyl)pyridine-2-sulfonyl chloride
2,3-Dichloro-5-(difluoromethyl)pyridine-6-sulfonyl chloride
4-Chloro-6-(difluoromethyl)-2,3-diiodopyridine
6-Bromo-2-(difluoromethyl)-3,4-diiodopyridine
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