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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/3859

Title: Steroidal glycosides from the marine sponge Pandaros acanthifolium
Authors: Cachet, N.
Regalado, E.L.
Genta-Jouve, G.
Mehiri, M.
Amade, P.
Thomas, O.P.
ASFA Terms: Sponges
Issue Date: 2009
Citation: Steroids, 74. p. 746-750
Abstract: The chemical composition of the Caribbean sponge Pandaros sp. was investigated and led to the isolation of seven new steroidal glycosides namely pandarosides A-D (1, 3, 4 and 6) along with the three methyl esters of pandarosides A, C, and D (2, 5 and 7). Their structures were characterized as 3β-[β-glucopyranosyl-(1→2)-β-glucopyranosyloxyuronic acid]-16-hydroxy- 5α,14β-poriferast-16-ene-15,23-dione (1) and its methyl ester (2), 3β-[β- glucopyranosyloxyuronic acid]-16-hydroxy-5α,14β-poriferast-16-ene-15,23-dione (3), 3β-[β- glucopyranosyl-(1→2)-β-glucopyranosyloxyuronic acid]-16-hydroxy-5α,14β-cholest-16-ene- 15,23-dione (4) and its methyl ester (5), 3β-(β-glucopyranosyloxyuronic acid)-16-hydroxy- 5α,14β-cholest-16-ene-15,23-dione (6) and its methyl ester (7) on the basis of detailed spectroscopic analyses, including 2D NMR and HRESI-MS studies. Pandarosides A-D and their methyl esters (1-7) are all characterized by a rare 2-hydroxycyclopentenone D-ring with a 14β configuration.
URI: http://hdl.handle.net/1834/3859
Related document: http://dx.doi.org/10.1016/j.steroids.2009.03.009
Appears in Collections:1. Articulos científicos

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