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Methyl (2R,3R,4S)-3-acetamido-2-[(S)-4-[[3-[4-[[(S)-[(2R,3R,4S)-3-acetamido-4-(diaminomethylideneamino)-6-methoxycarbonyl-3,4-dihydro-2H-pyran-2-yl]-[(4R)-2-oxo-1,3-dioxolan-4-yl]methoxy]carbonylamino]butylsulfamoyl]phenyl]sulfonylamino]butylcarbamoyloxy-


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