Piperacillin Impurity 7

Chemical Name: (2S,5R,6R)-6-((2R)-2-((2R)-2-((4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)-2-((R)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-phenylacetamido)acetamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Smile: OC([C@@H]1NC(SC1(C)C)[C@@H](C(N[C@H](C2=CC=CC=C2)C(N[C@]3([H])C(N4[C@]3([H])SC(C)(C)[C@@H]4C(O)=O)=O)=O)=O)NC([C@H](NC(N5CCN(CC)C(C5=O)=O)=O)C6=CC=CC=C6)=O)=O