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Geobarrettin D, a Rare Herbipoline-Containing 6-Bromoindole Alkaloid from IGeodia barretti/I
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Geobarrettin D, a Rare Herbipoline-Containing 6-Bromoindole Alkaloid from IGeodia barretti/I
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Journal Article
Geobarrettin D, a Rare Herbipoline-Containing 6-Bromoindole Alkaloid from IGeodia barretti/I
2023
Overview
Geobarrettin D (1), a new bromoindole alkaloid, was isolated from the marine sponge Geodia barretti collected from Icelandic waters. Its structure was elucidated by 1D, and 2D NMR (including [sup.1]H-[sup.15]N HSQC, [sup.1]H-[sup.15]N HMBC spectra), as well as HRESIMS data. Geobarrettin D (1) is a new 6-bromoindole featuring an unusual purinium herbipoline moiety. Geobarrettin D (1) decreased secretion of the pro-inflammatory cytokine IL-12p40 by human monocyte derived dendritic cells, without affecting secretion of the anti-inflammatory cytokine IL-10. Thus, compound 1 shows anti-inflammatory activity.
Publisher
MDPI AG
Subject
