Synonyms: 2,3,5-Piperazinetrione,6-[[2-(1,1-dimethylallyl)-6-(3-methyl-2-butenyl)indol-3-yl]methylene]- (8CI);Piperazinetrione,6-[[2-(1,1-dimethyl-2-propenyl)-6-(3-methyl-2-butenyl)-1H-indol-3-yl]methylene]-,(6Z)- (9CI); Piperazinetrione,[[2-(1,1-dimethyl-2-propenyl)-6-(3-methyl-2-butenyl)-1H-indol-3-yl]methylene]-,(Z)-; Alkaloid E 9, from Aspergillus amstelodami; Neoechinulin; Neoechinuline