10AH-9,10b-epoxy-2H-furo[4,3,2-jk]pyrano[4,3,2-ef][2]benzoxepin-2,6(4H)-dione, 9-(3-furanyl)octahydro-7a-hydroxy-2a,7,10c-trimethyl- AIDS-142890 AIDS142890 NSC661408