Methyl 3-(difluoromethyl)-5-hydroxy-6-iodopyridine-2-carboxylate
3-(Difluoromethyl)-5-hydroxy-4-iodo-2-nitropyridine
5-(Chloromethyl)-2-(difluoromethyl)-4-hydroxy-3-iodopyridine
4-(Difluoromethyl)-5-hydroxy-2-iodopyridine-3-acetonitrile
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