Deoxybrevianamide E

L-Prolyl-2-(1,1-diMethylallyl)-L-tryptophan anhydride

(3S,8aα)-3β-[[2-(1,1-Dimethyl-2-propenyl)-1H-indol-3-yl]methyl]octahydropyrrolo[1,2-a]pyrazine-1,4-dione

(3S,8aα)-3β-[[2-(1,1-Dimethyl-2-propenyl)-1H-indol-3-yl]methyl]-1,2,3,4,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazine-1,4-dione