Showing structure for methyl (2r)-2-[(2r,3e,12bs)-3-ethylidene-1h,2h,4h,6h,7h,12h,12bh-indolo[2,3-a]quinolizin-2-yl]-2-[(1r)-1h,2h,3h,4h,9h-pyrido[3,4-b]indol-1-yl]acetate