Showing structure for 6-(1-{2,5,5a,6-tetrahydroxy-1,9a-dimethyl-9-oxo-2h,3h,3bh,4h,5h,6h,9bh,10h,11h-cyclopenta[a]phenanthren-1-yl}ethyl)-3,4-dimethyl-5,6-dihydropyran-2-one