2-Butenoic acid, 4-[8-(acetyloxy)-3a,4,5,7-tetrahydro-3,3,11-trimethyl-13-(3-methyl-2-butenyl)-11-(4-methyl-3-pentenyl)-7,15-dioxo-1,5-methano-1H,3H,11H-furo[3,4-g]pyrano[3,2-b]xanthen-1-yl]-2-methyl-, (2Z)- AIDS-161472 AIDS161472 NSC693700