Showing structure for (2z,6r)-6-[(1r,3ar,5ar,7r,9ar,9br)-7-(acetyloxy)-3a,6,6,9a-tetramethyl-11-methylidene-1h,2h,3h,5h,5ah,7h,8h,9h,9bh,10h,11ah-cyclopenta[a]phenanthren-1-yl]-2-methylhept-2-enoic acid