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1. 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, and Al-Mourabit A

Subjects
Alkaloids chemistry, Animals, Imidazoles chemistry, Marine Biology, Molecular Structure, Nuclear Magnetic Resonance, Biomolecular, Pacific Ocean, Pyrroles chemistry, Agelas chemistry, Alkaloids isolation & purification, Imidazoles isolation & purification, Pyrroles isolation & purification
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.

Published
2009
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