Showing structure for [(2r,3s,4s,5r,6r)-6-{[(3as,8ar,9ar)-8a-methyl-3-methylidene-2-oxo-3ah,4h,6h,7h,8h,9h,9ah-naphtho[2,3-b]furan-5-yl]methoxy}-3,4,5-trihydroxyoxan-2-yl]methyl acetate