Piperacillin EP Impurity S

Chemical Name: (2S,5R,6R)-6-[(2S,5R,6R)-6-[(2R)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-phenylacetamido]-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-carboxylic acid (as per EP)

Smile: O=C([C@@H](C1=CC=CC=C1)NC(N(CCN(CC)C2=O)C2=O)=O)N[C@@H]3[C@](SC(C)(C)[C@@H]4C(N[C@H]5[C@@]([H])(SC(C)(C)[C@@H]6C(O)=O)N6C5=O)=O)([H])N4C3=O