Document Report Card

ID: ALA1154560

Journal: J Nat Prod

Title: New sesquiterpene/quinones from two sponges of the genus Hyrtios.

Authors: Salmoun M, Devijver C, Daloze D, Braekman JC, Gomez R, de Kluijver M, Van Soest RW.

Abstract: Two sponges of the genus Hyrtios have been found to contain new sesquiterpene/quinones identified by detailed spectroscopic analysis. Four new compounds with a 4,9-friedodrim-3-ene skeleton [hyrtiophenol (2), 5-epihyrtiophenol (3), 18-hydroxy-5-epihyrtiophenol (4), and 18-hydroxyhyrtiophenol (5)] were isolated from Hyrtios sp. (Seychelles Islands) along with isospongiaquinone (1). Moreover, the new compound 21-hydroxy-19-methoxyarenarone (8), which bears the 4, 9-friedodrim-4(15)-ene skeleton, was isolated from Hyrtios tubulatus (Curaçao) along with arenarol (6) and 5-epiilimaquinone (7). Assignment of the (13)C NMR signals of four types of 4, 9-friedodrimene skeletons found in sponges is presented.

CiteXplore: 10785412

DOI: 10.1021/np9903346