4-Piperidineacetic acid,1-[2-(5,6-dimethoxy-1H-indol-3-yl)-2-oxoethyl]-5-ethyl-2-oxo-, ethylester, trans-(±)-

2,3-seco-2,3-dihydroreserpiline

2-(β-indolyl)ethylpiperidine

9,10-Dimethoxy-1,2,3,4,6,7,12,12b-octahydro-indolo[2,3-a]quinolizine

5,6-Dimethoxy-3-[2-(1-oxy-piperidin-1-yl)-ethyl]-1H-indole