(+/-)-1α-ethyl-1β-(2',2'-diethoxycarbonylethyl)-1,2,3,4,6,7,12,12bα-octahydro-indolo[2,3-a]quinolizine

vincadifforminate d'ethyle

(+)-(1α-Ethyl-1,2,3,4,6,7,12,12bα-octahydro-indolo[2,3-a]quinolizin-1β-yl)-propionic acid

(+)-(3S,17S)-14-oxo-E-homo-eburnane

(-)-methyl 1,2,3,4,6,7,12,12bα-octahydroindolo(2,3-a)quinolizine(1β-yl) pyruvate oxime