Rifampicin Impurity 1

Smile: OC1=C(C(O)=O)C(NC(/C(C)=C\C=C\[C@@](C)([H])[C@@](O)([H])[C@](C)([H])[C@@]([H])(O)[C@](C)([H])[C@]([C@]2([H])C)([H])OC(C)=O)=O)=C(O)C3=C1C4=C(O[C@@](O/C=C/[C@]2([H])OC)(C)C4=O)C(C)=C3O