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