Showing structure for (3s,3ar,4s,6s,6ar,10s,12s,13r,15as)-3-benzyl-1,6-dihydroxy-13-methoxy-4,10,12-trimethyl-5-methylidene-15-oxo-3h,3ah,4h,6h,6ah,9h,10h,11h,13h,14h-cycloundeca[d]isoindol-12-yl acetate