| 3-[({4-[(n-{4-(alanylamino)-7-[(diaminomethylidene)amino]-3-hydroxyheptanoyl}alanyl)amino]-7-[(diaminomethylidene)amino]-3-hydroxyheptanoyl}oxy)methyl]-7-[(5-amino-5-carboxypentanoyl)amino]-7-(formylamino)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbo |
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