3-Cyano-6-(difluoromethyl)-2,5-diiodopyridine
3-Amino-4-bromo-2-(difluoromethyl)-5-fluoropyridine
3-Amino-2-bromo-5-(difluoromethyl)-6-fluoropyridine
6-Cyano-3-(difluoromethyl)-2,4-diiodopyridine
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