Synonyms: 1H-Indolizino[8,1-cd]carbazole,6-acetyl-3a-ethyl-2,3,3a,4,5,5a,6,11,12,13a-decahydro-7,8-dimethoxy- (7CI); Aspidocarpine,O-methyl- (6CI); Aspidospermidine, 1-acetyl-16,17-dimethoxy- (9CI);Pyrifolidine (8CI); (-)-O-Methylaspidocarpine; (-)-Pyrifolidine;O-Methylaspidocarpine; Pyrifolidin