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Isolation and structure elucidation of azoricasterol, a new sterol of the deepwater sponge Macandrewia azorica

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Abstract

Chemical investigation of the deepwater sponge Macandrewia azorica, collected from the flanks of the Gettysburg and Ormonde Sea Mount, North Atlantic, from a depth of 600 m, has led to the isolation of a new sterol with an unusual side chain (1), along with S-methylergothioneine (2). The structures of compounds 1 and 2 were established by employing spectroscopic techniques (NMR, MS, UV, IR and polarimetry). This is the first report of metabolites of a sponge belonging to the genus Macandrewia.

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Fig. 1 a
Fig. 2

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Acknowledgement

We are grateful to G. Eckhardt, Institute for Chemistry, University of Bonn, and P. Janning, Max Planck Institute for Molecular Physiology, Dortmund, for EIMS and HRFABMS measurements. This paper respresents publication no. 48 of the research program BOSMAN 03FO358D. Financial support was provided by the Bundesministerium für Bildung und Forschung (BMBF).

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Correspondence to Gabriele M. König.

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Gross, H., Reitner, J. & König, G.M. Isolation and structure elucidation of azoricasterol, a new sterol of the deepwater sponge Macandrewia azorica. Naturwissenschaften 91, 441–446 (2004). https://doi.org/10.1007/s00114-004-0552-6

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  • DOI: https://doi.org/10.1007/s00114-004-0552-6

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