Methyl 4-(difluoromethyl)-3-hydroxy-5-iodopyridine-2-acetate
Methyl 3-(difluoromethyl)-5-hydroxy-4-iodopyridine-2-acetate
Methyl 2-(difluoromethyl)-5-hydroxy-6-iodopyridine-3-acetate
3-(Difluoromethyl)-4-hydroxy-5-iodopyridine-2-carbonyl chloride
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