Showing structure for 8-{9a,11a-dimethyl-9-oxo-1h,2h,3h,3ah,3bh,4h,6h,9bh,10h,11h-cyclopenta[a]phenanthren-1-yl}-4-(methoxymethyl)-5-methyl-2,6-dioxabicyclo[3.3.1]nonan-3-one