Synonyms: Aspidospermidine-3-carboxylic acid, 4-(acetyloxy)-6,7-didehydro-3-hydroxy-1-methyl-, methyl ester, (2beta,3beta,4beta,5alpha,12beta,19alpha)- (9CI);Vindolidin;1H-Indolizino(8,1-cd)carbazole-5-carboxylic acid, 3a-ethyl-3a,4,5,5a,6,11,12,13a-octahydro-4,5-dihydroxy-6-methyl-, methyl ester, 4-acetate;1H-INDOLIZINO(8,1-cd)CARBAZOLE-5-CARBOXYLIC ACID, 3a-ETHYL-3a,4,5,5a,6,11,12,13a;Vindolidine;Vindorosine;1H-Indolizino(8,1-cd)carbazole-5-carboxylic acid, 3a-ethyl-3a,4,5, 5a,6,11,12,13a-octahydro-4,5-dihydroxy-6-methyl-, methyl ester, 4-acetate;Aspidospermidine-3-carboxylic acid,4-(acetyloxy)-6,7-didehydro-3-hydroxy- 1-methyl-,methyl ester,(2a,3a,4a,5R,12a,19R)-;Aspidospermidine-3-carboxylic acid, 4- (acetyloxy)-6, 7-didehydro-3-hydroxy-1-methyl-, methyl ester, (2.beta.,3.beta., 4.beta.,5.alpha.,12.beta.,19.alpha.)-;