4-Chloro-6-(difluoromethyl)-2,3-diiodopyridine
6-Bromo-2-(difluoromethyl)-3,4-diiodopyridine
2-Bromo-4-(difluoromethyl)-3,6-diiodopyridine
4-Bromo-6-(difluoromethyl)-2,3-diiodopyridine
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