3,6:5,11a-Dimethano-2H-indolo[3,2-c]isoquinolin-2-one,1,3,4,4a,5,6a,11,11b-octahydro-11b,13,13-trimethyl-11-(2,3,4,4a,5,10,11,11a-octahydro-2,2,5-trimethyl-13-oxo-3,5-ethano-1H-pyrido[2,3-b]carbazol-9-yl)-,[3S-[3a,4ab,5b,6a,6aa,11(3R*,4aR*,5S*,11aS*),11ab