6H-5b,8-Ethano-4H,9H-benzofuro[7,6-h]furo[4,3,2-de][2]benzopyran-4,9-dione, 5,5a,8,8a,10a,10b,11,11a-octahydro-8,12-dihydroxy- AIDS-030626 AIDS030626 Icacenone NSC383339