6-(Difluoromethyl)-4-hydroxy-3-iodopyridine-2-sulfonamide
3-(Difluoromethyl)-4-hydroxy-2-iodopyridine-6-methanol
2-(Difluoromethyl)-5-hydroxy-3-methoxy-4-nitropyridine
3-(Difluoromethyl)-2-hydroxy-4-iodopyridine-6-methanol
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