Sesterterpenes from the sponge dysidea sp.

Abstract

The e been elucidated by means of spectroscopic data interpretation, mainly 1D and 2D NMR and mass acetone extract of the sponge Dysidea sp. was subjected to chromatography techniques for fractionation and purification. A new sesterterpene, scalarester (1), and four known scalaranes, viz. scalarin (2), scalaradial (3), desacetylscalaradial (4), and desacetoxyscalaradial (5), were obtained. Their structures havspectrometry. © 2010 Verlag der Zeitschrift für Naturforschung, Tübingen.