Rifampicin Impurity 2

Smile: OC1=C(NC(/C(C)=C\C=C\[C@](C)([H])[C@](O)([H])[C@@](C)([H])[C@]([C@@]([H])([C@@]([C@]2(C)[H])([H])OC(C)=O)C)([H])O)=O)C(/C=N/N3CCN(C)CC3)=C(O)C4=C1C(O)=C(C)C5=C4C([C@@](O/C=C/[C@]2(O)[H])(C)O5)=O