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