Download PDF
Planta Med 1992; 58(2): 184-187
DOI: 10.1055/s-2006-961425
Papers

© Georg Thieme Verlag Stuttgart · New York

Zur NMR-Spektroskopie von N-Acylaporphin-Alkaloiden aus Tinospora crispa

NMR-Assignments of N-Acylaporphine Alkaloids from Tinospora crispa Peter Pachaly1 , Adek Zambrud Adnan2 [4] , G. Will3
  • 1Pharmazeutisches Institut der Universität Bonn, Kreuzbergweg 26, D(W)-5300 Bonn, Federal Republic of Germany
  • 2Pharmaceutical Department, Andalas University, Padang, Indonesia
  • 3Mineralogisch und Petrologisches Institut der Universität Bonn, D(W)-5300 Bonn 1, Federal Republic of Germany
Further Information

Publication History

1991

Publication Date:
05 January 2007 (online)

Also available at
  PDF Download  Permissions and Reprints

Abstract

N-Formylannonaine (1), N-formylnornuciferine (2) and N-acetylnornuciferin (3), have been isolated from stems of Tinospora crispa (Menispermaceae), and their NMR-spectra have been fully assigned by 2D-NMR experiments. This is the first reported occurrence of N-formyl- and N-acetylaporphines from the genus Tinospora.

Key words

Tinospora crispa - Menispermaceae - aporphine alkaloids - N-formylannonaine - N-formylnornuciferine - N-acetylnornuciferine - NMR-assignments - conformational equilibrium of N-acylaporphines

1 Teil der Diss. A. Z. Adnan, Bonn 1989