Benzosceptrins A and B with a unique benzocyclobutane skeleton and nagelamide S and T from Pacific sponges Appenzeller J. auteur aut IRD Tilvi S. auteur aut IRD Martin M. T. auteur aut IRD Gallard J. F. auteur aut IRD El-bitar H. auteur aut IRD Dau E. T. H. auteur aut IRD Debitus Cécile auteur aut IRD Laurent Dominique auteur aut IRD Moriou C. auteur aut IRD Al-Mourabit A. auteur aut IRD text journalArticle eng text/pdf born digital access 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. specialized 035 Organic Letters 11 21 4874-4877 2009 1523-7060 https://www.documentation.ird.fr/hor/fdi:010090950 10.1021/ol901946h 1523-7060 [F B010090950] https://www.documentation.ird.fr/hor/fdi:010090950 https://www.documentation.ird.fr/intranet/publi/2024-08/010090950.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2009-12-03 2024-08-08 fdi:010090950 fre