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  • Title: Benzosceptrins A and B with a unique benzocyclobutane skeleton and nagelamide S and T from Pacific sponges.
    Author: Appenzeller J, Tilvi S, Martin MT, Gallard JF, El-bitar H, Dau ET, Debitus C, Laurent D, Moriou C, Al-Mourabit A.
    Journal: Org Lett; 2009 Nov 05; 11(21):4874-7. PubMed ID: 19863148.
    Abstract:
    Four new dimeric pyrrole-2-aminoimidazole alkaloids have been isolated from the Pacific marine sponges Agelas cf. mauritiana and Phakellia sp. They include the unusual C2 symmetrical benzosceptrins A (4) and B (5), which each possess a unique benzocyclobutane skeleton and nagelamides S (6) and T (7). Their structures and relative configuration were elucidated from spectroscopic data. Plausible biogenetic paths for these compounds are also proposed in this paper.
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