Synonyms: 1,16-Cyclocorynan-17-oicacid, 19,20-didehydro-, methyl ester, (16S,19E)-;2H-2,12-Methanoindolo[2,3-a]quinolizine-13-carboxylic acid,3-ethylidene-1,3,4,6,7,12b-hexahydro-, methyl ester (7CI); Pleiocarpamine(8CI); (+)-Pleiocarpamine; 2H-2,12-Methanoindolo[2,3-a]quinolizine-13-carboxylicacid, 3-ethylidene-1,3,4,6,7,12b-hexahydro-, methyl ester, [2R-(2a,3E,12bb,13S*)]-; NSC 374523