3-Bromo-6-(difluoromethyl)-2-iodopyridine-5-sulfonamide
6-Bromo-3-(difluoromethyl)-4-iodopyridine-2-acetonitrile
2-Bromo-5-(difluoromethyl)-3-iodopyridine-6-acetonitrile
6-Bromo-4-(difluoromethyl)-3-iodopyridine-2-acetonitrile
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