The molecule is a sesquiterpenoid that is 1,2,3a,4,5,7,8,9,9a,9b-decahydronaphtho[2,1-b]furan substituted by methyl groups at positions 1, 9 and 9a and hydroxy groups at positions 2 and 7. Isolated from methylene chloride solubles of the Formosan soft coral Nephthea elongata, it exhibits cytotoxicity against selected cancer cells. It has a role as an antineoplastic agent and a coral metabolite. It is a sesquiterpenoid, a cyclic ether, a diol and an organic heterotricyclic compound.
(1S,2S,3aS,7S,9S,9aS,9bR)-1,9,9a-trimethyl-2,3a,4,5,7,8,9,9b-octahydro-1H-benzo[e][1]benzofuran-2,7-diol