| Poly[[(2S,5R,6R)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-6,2-diyl]carbonyloxycarbonyl[(2S,5R,6R)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2,6-diyl]imino[(2R)-2-[4-(acetyloxy)phenyl]-1-oxo-1,2-ethanediyl]imino(1,10-dioxo-1,10-decan |
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