Showing structure for (3as,4r,5r,6s,6as,7r,9as,9br)-4,7-bis(acetyloxy)-6-hydroxy-6,9-dimethyl-3-methylidene-2-oxo-3ah,4h,5h,6ah,7h,9ah,9bh-azuleno[4,5-b]furan-5-yl acetate