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[(2R,3S,4S,5R)-3,4-Diacetyloxy-5-[(1S,2R,6R,7R)-4,9,11-trioxo-3,5-dioxa-8,10-diazatricyclo[5.4.0.02,6]undecan-8-yl]oxolan-2-yl]methyl acetate


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