S. Urban et Rj. Capon, DEOXYSPONGIAQUINONES - NEW SESQUITERPENE QUINONES AND HYDROQUINONES FROM A SOUTHERN AUSTRALIAN MARINE SPONGE EURYSPONGIA SP, Australian Journal of Chemistry, 49(5), 1996, pp. 611-615
Chemical investigation of a marine sponge, Euryspongia sp., collected
from tile Great Australian Eight, Australia, resulted in the isolation
of two new sesquiterpene quinones, deoxyspongiaquinone (4) and (E)-ch
lorodeoxyspongiaquinone (5), as well as two sesquiterpene hydroquinone
s, deoxyspongiaquinol (6) and (E)-chlorodeoxyspongiaquinol (7). The st
ructures for (4)-(7) were determined by detailed spectroscopic analysi
s, as well as chemical interconversion and degradation.