108740-89-2 17-Hydroxywortmannin 3H-Furo(4,3,2-de)indeno(4,5-h)-2-benzopyran-3,6(1H)-dione, 11-(acetyloxy)-6b,7,8,9,9a,10,11,11b-octahydro-9-hydroxy-1-(methoxymethyl)-9a,11b-dimethyl-