Synonyms: 2H,12H-12a,2,7a-(Epoxyethanylylidene)indolo[2,3-a]quinolizine-15-carboxylicacid, 3-ethylidene-1,3,4,6,7,12b-hexahydro-9-hydroxy-12-methyl-, methyl ester(7CI); Akuammine (8CI); (-)-Akuammine; 2H,12H-12a,2,7a-(Epoxyethanylylidene)indolo[2,3-a]quinolizine-15-carboxylicacid, 3-ethylidene-1,3,4,6,7,12b-hexahydro-9-hydroxy-12-methyl-, methyl ester,[2S-(2a,3E,7aa,12aa,12bb,15S*)]-; Akuammin;Vincamajoridin; Vincamajoridine; [2S-(2a,3E,7aa,12aa,12bb,15S*)]-Methyl 3-ethylidene-1,3,4,6,7,12b-hexahydro-9-hydroxy-12-methyl-2H,12H-12a,2,7a-(epoxyethanylylidene)indolo[2,3-a]quinolizine-15-carboxylate