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Oxachamigrenes, new halogenated sesquiterpenes from Laurencia obtusa
Inmaculada Brito1, Mercedes Cueto, Ana R Díaz-Marrero
1Instituto de Productos Naturales y Agrobiología del CSIC, Avenida Astrofísico F. Sánchez 3, Apartado 195, 38206 La Laguna, Tenerife, Spain.
Journal of Natural Products
|June 29, 2002
Abstract:
Two new sesquiterpenes belonging to a novel oxacyclic structural type of chamigrene skeleton, oxachamigrene (1) and 5-acetoxyoxachamigrene (2), have been isolated from the red alga Laurencia obtusa. The structures of the compounds were determined on the basis of spectroscopic evidence. A biogenetic route for these metabolites has been proposed.