Studies on the Alkaloids from Picrasma quassioides BENNET.VII. : Structures of β-Carboline Dimer Alkaloids, Picrasidines-H and -R

Abstract

Two new β-carboline dimer alkaloids, picrasidines-H (1) and (2), have been isolated from the root bark of Picrasma quassioides BENNET (Simaroubaceae). The structures were determined on the basis of spectral analysis.