Showing structure for (3s,3ar,4s,6s,6ar,10s,12r,15r,15ar)-3-benzyl-1,6,12-trihydroxy-4,10,12-trimethyl-5-methylidene-11-oxo-3h,3ah,4h,6h,6ah,9h,10h,15h-cycloundeca[d]isoindol-15-yl acetate