Showing structure for (2r,3z,12bs)-2-{3-[(2r,3z,12bs)-3-ethylidene-1h,2h,4h,6h,7h,12h,12bh-indolo[2,3-a]quinolizin-2-yl]cyclopentyl}-3-ethylidene-1h,2h,4h,6h,7h,12h,12bh-indolo[2,3-a]quinolizine