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