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Issue 33, 2013
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Total synthesis and biological evaluation of (−)-atrop–abyssomicin C

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Enantioselective synthesis of a marine antibiotic (−)-atrop–abyssomicin C was accomplished in 21 steps, in 1.8% overall yield (4%, based on the recovered starting material). The key steps of the synthesis are the formation of the functionalized cyclohexane core by an organocatalyzed Tsuji–Trost reaction, the formation of a tricyclic spirotetronate unit by a gold-catalyzed reaction sequence and the highly efficient eleven-membered ring closure by a Nozaki–Hiyama–Kishi reaction. Biological tests showed all abyssomicin derivatives to possess strong antibacterial activity against methicillin resistant S. aureus strains; however, they also proved to be cytotoxic, both to malignant and to normal somatic cells.

Graphical abstract: Total synthesis and biological evaluation of (−)-atrop–abyssomicin C

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The article was received on 06 Apr 2013, accepted on 18 Jun 2013 and first published on 19 Jun 2013

Article type: Paper
DOI: 10.1039/C3OB40692J
Org. Biomol. Chem., 2013,11, 5413-5424

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    Total synthesis and biological evaluation of (−)-atrop–abyssomicin C

    F. Bihelovic, I. Karadzic, R. Matovic and R. N. Saicic, Org. Biomol. Chem., 2013, 11, 5413
    DOI: 10.1039/C3OB40692J

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