Bestimmung der Molekül- und Kristallstruktur sowie der Absolutkonfiguration von Peganin

The Crystal and Molecular Structure of Peganine. Estimation of its Absolute Configuration The crystal and molecular structure of (-)-peganine hydrochloride 2 have been determined by X-ray structure analysis. Furthermore the absolute configuration of this alkaloid was deduced with the aid of the anomalous scattering at the Cl-atoms. The pyrrolidine ring of 2 has envelope conformation. 2 possesses R -configuration.