Showing structure for (1s,3s,4ar,5r,6r,9s,10r,10as)-5,9,10-tris(acetyloxy)-3-hydroxy-6-[(3r)-3-hydroxy-2-oxobutyl]-7,7,10a-trimethyl-4-methylidene-8-oxo-octahydrobenzo[8]annulen-1-yl acetate