Synonyms: Corynan-17-ol,19,20-didehydro-16-[(10b,13b,21b)-23-deoxy-21,22-dihydro-11-oxa-12,24-secostrychnidin-10-yl]-,(16R,19E)-; Geissospermol (6CI,7CI,8CI); 11-Oxa-12,24-secostrychnidine,corynan-17-ol deriv.; Indolo[2,3-a]quinolizine, corynan-17-ol deriv.;12H-1,12-Ethano-9H,11H-[1,3]oxazino[3,4,5-lm]pyrrolo[2,3-d]carbazole-9-ethanol,14-ethyl-b-(3-ethylidene-1,2,3,4,6,7,12,12b-octahydroindolo[2,3-a]quinolizin-2-yl)-2,3,11a,11b,13,13a-hexahydro-,[1S-[1a,3aS*,9a[R*(2S*,3E,12bR*)],11aa,11ba,12a,13ab,14R*]]-