Nouveaux Alcaloïdes de Type Aspidofractinine Fonctionnalises en C-17, Extraits des Écorces de Tronc d'un Kopsia de Malaisie

Journal of Natural Products
1988.0

Abstract

Three new indole alkaloids of the aspidofractinine group, N-carbomethoxy-17β-hydroxy-kopsinine [2), N-carbomethoxy-17β-hydroxy-Δ-14,15-kopsinine [3), and kopsinone [5], have been isolated from the stem bark of Kopsia deyerrei. The proposed structures were assigned after detailed analysis of their ¹H and ¹³C nmr spectra.

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