Peduncularistine, Triabunnine and Aristolarine, Three Ne Indole Alkaloids from Aristotelia peduncularis (LLABILL.) HOOK, F. Peduncularistine (1), triabunnine (2) and aristolarine (3), three new indole alkaloids, have been isolated from Aristotelia peduncularis (LABILL.) HOOK. F.; the structure and absolute configuration of 1 were elucidated on the basis of spectroscopic data and confirmed byt transformation of 1 into aristeserratine (4), a known alkaloid isolated from the same plant. The proposed structure 2 for the second alkaloid and its absolute configuration were established but spectroscopic means and by partial synthesis from 4. The relative configuration of 3 was postulated on the basis of spectroscopic and biogenetic arguments. Copyright © 1984 Verlag GmbH & Co. KGaA, Weinheim