Synonyms: 3H-Furo[4,3,2-de]indeno[4,5-h]-2-benzopyran-3,6,9-trione,1,6b,7,8,9a,10,11,11b-octahydro-1-(methoxymethyl)-9a,11b-dimethyl-, [1S-(1a,6ba,9ab,11bb)]-;3H-Furo[4,3,2-de]indeno[4,5-h][2]benzopyran-3,6,9-trione, 1,6ba,7,8,9a,10,11,11b-octahydro-1-(methoxymethyl)-9ab,11bb-dimethyl- (8CI); 11-Deacetoxywortmannin;Desacetoxywortmannin