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A New Epoxy-cadinane Sesquiterpene from the Marine Brown Alga Dictyopteris divaricata

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Author(s): Yuan-Yuan Qiao | Nai-Yun Ji | Wei Wen | Xiu-Li Yin | Qin-Zhao Xue

Journal: Marine Drugs
ISSN 1660-3397

Volume: 7;
Issue: 4;
Start page: 600;
Date: 2009;
Original page

Keywords: Dictyopteris divaricata | sesquiterpene | cadinane

ABSTRACT
A new epoxy-cadinane sesquiterpene, 4β,5β-epoxycadinan-1β-ol (1), and six known cadinane sesquiterpenes: cadinan-1,4,5-triol (2), 4α,5β-dihydroxycubenol (3), cubenol (4), cadinan-3-ene-1,5-diol (5), cubenol-3-one (6), and torreyol (7), were isolated from a sample of marine brown alga Dictyopteris divaricata collected off the coast of Yantai (China). Their structures were established by detailed MS and NMR spectroscopic analysis, as well as comparison with literature data.

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