A New Sesterterpene Tetronic Acid and a Pentaprenylated p-Quinol From an Australian Marine Sponge, Spongia sp.

Abstract

The sesterterpene tetronic acid (1) and the pentaprenylated p- quinol (2) have been isolated from a specimen of sponge, Spongia sp., collected at a depth of 23 m from Port Phillip Bay, Australia. Structures were assigned on the basis of detailed spectroscopic analysis.