Showing structure for (1r,3ar,3br,4r,9ar,9bs,11as)-9a,11a-dimethyl-2,7-dioxo-1-[(1s)-1-[(1s,3r,5r)-1,5,6,6-tetramethyl-2,7,8-trioxabicyclo[3.2.1]octan-3-yl]ethyl]-1h,3h,3ah,3bh,4h,5h,9bh,10h,11h-cyclopenta[a]phenanthren-4-yl acetate