Absolute configuration study of a new dimeric indole alkaloid from the leaves and twigs of Psychotria henryi

Abstract

From the leaves and twigs of Psychotria henryi, a new dimeric indole alkaloid, named psychohenin, was isolated, whose structure was elucidated on the basis of extensive spectroscopic analysis. The absolute configuration of psychohenin was determined by a single-crystal X-ray diffraction study using a mirror Cu Kα radiation.

Keywords::

• Psychotria henryi
• dimeric indole alkaloid
• absolute configuration
• X-ray crystallography

Additional information

Funding

This research work was financially supported by the National Science Foundation of China (81173526), the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT-IRT1193), and the Program for New Century Excellent Talents in University, State Education Ministry of China (#NCET-11-0738).