A BUTENOLIDE FROM THE MARINE SPONGE CALLYSPONGIA VAGINALIS

摘要

A butenolide identified as 5-hydroxy-3-methyl-5-pentyl-2, 5-dihydrofuran-2-one (1) was isolated from Callyspongia vaginalis. Structural elucidation was achieved via spectroscopic means including 1D and 2D NMR experiments. Callyspongia vaginalis or the Branching Vase Sponge is usually a tubular marine organism. It is commonly found along the Caribbean reefs and ranges in colour from purple to blue to grey, brownish-grey and grey-green. Fan-shaped and vase-shaped varieties also exist, which are located in areas of strong currents along with the tubular variety.