Synonyms: 2,20-Cycloaspidospermidine,(2a,5a,12b,19a,20S)-; Isotuboxenine (7CI,8CI);19-Epituboxenine; 20-Epituboxenine;3-De(methoxycarbonyl)-6,7-dihydro-20-epivindolinine;6H,13aH-3a,5a-Methano-1H-indolizino[8,1-cd]carbazole,2,3,4,5,11,12-hexahydro-14-methyl-, [3aS-(3aa,5aa,10bS*,13aa,14R*)]-