Piperacillin EP Impurity P

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

Smile: O=C1N(C(N[C@H](C2=CC=CC=C2)C(N[C@@H](C(N[C@]3([H])C(N4[C@]3([H])SC(C)(C)[C@@H]4C(O)=O)=O)=O)C5=CC=CC=C5)=O)=O)CCN(CC)C1=O