Showing structure for (9ar,11ar)-1-[(2r,3e,5r)-5,6-dimethylhept-3-en-2-yl]-9a,11a-dimethyl-1h,2h,3h,3ah,5ah,6h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthrene-5,7-dione