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