Fusidic Acid 3,11-Diketo Impurity

Chemical Name: (Z)-2-((4S,5S,8S,9S,10S,13R,14S,16S)-16-acetoxy-4,8,10,14-tetramethyl-3,11-dioxohexadecahydro-17H-cyclopenta[a]phenanthren-17-ylidene)-6-methylhept-5-enoic acid

Smile: C[C@@]([C@](C1=O)([H])[C@]2(CCC3=O)C)(CC[C@@]2([H])[C@@H]3C)[C@]([C@](C1)([H])/C4=C(C(O)=O)\CC/C=C(C)\C)(C[C@@H]4OC(C)=O)C