Conformational analysis and absolute stereochemistry of 'spongian'-related metabolites

New degraded and rearranged diterpenoids, 5-8, have been isolated from the Antarctic sponge Dendrilla membranosa. The structure and relative stereochemistry of these compounds were determined by spectroscopic data. The absolute stereochemistry of 5 was determined by spectroscopic data using a chiral...

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Bibliographic Details
Published in:Tetrahedron
Main Authors: Díaz Marrero, Ana, Dorta, Enrique, Cueto, Mercedes, San Martín Barrientos, Aurelio, Darias, José
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier Ltd 2004
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Online Access:https://doi.org/10.1016/j.tet.2003.11.077
https://repositorio.uchile.cl/handle/2250/154405
Description
Summary:New degraded and rearranged diterpenoids, 5-8, have been isolated from the Antarctic sponge Dendrilla membranosa. The structure and relative stereochemistry of these compounds were determined by spectroscopic data. The absolute stereochemistry of 5 was determined by spectroscopic data using a chiral reagent. Conformational studies allowed us to assign also the absolute stereochemistry of 6-8, as well as those previously isolated spongian-derived metabolites with known relative stereochemistries. © 2003 Elsevier Ltd. All rights reserved.