Showing structure for (1r,3ar,3br,4r,9as,9br,11ar)-1-[(1s)-1-[(2r,4s)-4-(acetyloxy)-4,5,5-trimethyloxolan-2-yl]ethyl]-9a,11a-dimethyl-7-oxo-1h,2h,3h,3ah,3bh,4h,5h,9bh,10h,11h-cyclopenta[a]phenanthren-4-yl acetate