12H-1,12-Ethano-9H-pyrido[1,2,3-lm]pyrrolo[2,3-d]carbazol-11-ol,14-ethylidene-2,3,10,11,11a,11b,13,13a-octahydro-5,6-dimethoxy-,(1S,3aR,11S,11aR,11bS,12R,13aS,14E)- (9CI)