5-Bromo-4-(difluoromethyl)-2-hydroxypyridine-3-sulfonyl chloride
4-Bromo-3-(difluoromethyl)-6-iodopyridine-2-acetonitrile
5-Bromo-4-(difluoromethyl)-3-hydroxypyridine-2-sulfonyl chloride
4-Bromo-3-(difluoromethyl)-5-iodopyridine-2-acetonitrile
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