Showing structure for (1r,3ar,3br,7s,9ar,9br,11as)-1-[(2e,5r)-5-ethyl-6-methylhept-2-en-2-yl]-9a,11a-dimethyl-1h,2h,3h,3ah,3bh,4h,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-7-yl acetate