Dagmar Koppler

Determination of Configuration at the Biaryl Axes of Naphthylisoquinoline Alkaloids by Long‐Range NOE Effects

G. Bringmann, A. Porzel, D. Scheutzow, 1997 .

5′-O-demethyl-8-O-methyl-7-epi-dioncophylline a and its ‘regularly’ configurated atropisomer from Triphyophyllum peltatum

G. Bringmann, L. A. Assi, M. Schäffer, 1994 .