Showing structure for (3s,3ar,4r,6r,6ar,8s,9bs)-6-(acetyloxy)-3,3a-dihydroxy-3,6,9-trimethyl-4-{[(2r)-2-methylbutanoyl]oxy}-2-oxo-4h,5h,6ah,7h,8h,9bh-azuleno[4,5-b]furan-8-yl (2e)-2-methylbut-2-enoate