Marine natural products. XI. An antiinflammatory scalarane-type bishomosesterterpene, foliaspongin, from the Okinawan marine sponge Phyllospongia foliascens (Pallas).
An antiinflammatory bishomosesterterpene named foliaspongin has been isolated from the Okinawan marine sponge Phyllospongia foliascens (PALLAS) and the structure (1) of a new scalarane-type has been proposed on the basis of chemical and physicochemical evidence.