Two New Hydroquinone Derivatives from Two Sponge Species of the Aegean Sea I ILKAY ERDOGEN, 2JUN'ICHI TANAKA, 2TATSUO RIGA, 'BILGE SENER

Abstract

From two sponge species (Spongia and Ircinia) of the Aegean Sea two new octaprenylated hydroquinone, 1,4,44-trihydroxy-2-octaprenylbenzene (1) and 4-hydroxy-3­oclaprenylbenzoic acid (2) were isolated together with eleven known terpenoids. The structures of the compounds were decided by using 1D- and 2D-NMR techniques. They were also tested against two gram-positive bacteria strains. Compound (I) exhibited weak activity against Pseudomonas aeuroginosa.