1,2,3,4,6,7,12,12b-octahydro-2-(1,3-dithiolan-2-yl)-indolo<2,3-a>-(6S,12bR)-6-carboxymethylquinolizine

1,2,3,4,6,7,12,12b-octahydro-2-(1,3-dithiolan-2-yl)-indolo<2,3-a>-(12bR)-quinolizine

8-[2-(1H-Indol-3-yl)-ethyl]-1,4-dioxa-8-aza-spiro[4.5]dec-9-ene-7-carbonitrile