benzyl (2S 5R 6R)-6-((2S 5R 6R)-6-((R)-2-(((benzyloxy)carbonyl)amino)-2-(4-(((benzyloxy)carbonyl)oxy)phenyl)acetamido)-3 3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxamido)-3 3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate

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