Showing structure for (1r,3as,5as,5br,7ar,9s,11ar,11br,13ar,13br)-9-(acetyloxy)-5a-[(benzoyloxy)methyl]-5b,8,8,11a-tetramethyl-1-(prop-1-en-2-yl)-hexadecahydrocyclopenta[a]chrysene-3a-carboxylic acid