Isolation and 1H/13C-NMR Studies on 19,20-Dihydrocondylocarpine: An Alkaloid from the Leaves of Ervatamia coronaria and Alstonia scholaris

Atta-ur-Rahman; K. A. Alvi; A. Muzaffar

doi:10.1055/s-2007-969167

Subscribe to RSS

Please copy the URL and add it into your RSS Feed Reader.

https://www-thieme-connect-de.accesdistant.sorbonne-universite.fr/rss/thieme/en/10.1055-s-00000058.xml

Share / Bookmark

Facebook Linkedin Weibo

Download PDF

Planta Med 1986; 52(4): 325-326
DOI: 10.1055/s-2007-969167

Communications

Isolation and ¹H/¹³C-NMR Studies on 19,20-Dihydrocondylocarpine: An Alkaloid from the Leaves of Ervatamia coronaria and Alstonia scholaris

Atta-ur-Rahman, K. A. Alvi, A. Muzaffar

H. E. J. Research Institute of Chemistry, University of Karachi, Karachi-32, Pakistan.

Further Information

Publication History

1985

Publication Date:
26 February 2007 (online)

Also available at

PDF Download Permissions and Reprints

Abstract

Studies on the alkaloidal constituents of the leaves of Ervatamia coronaria Stapf and Alstonia scholaris have resulted in the isolation of (20S)-19,20-dihydrocondylocarpine which has not been previously reported from these plants. The stereochemistry at C-20 was established with the help of n. O. e. difference measurements. ¹³C-NMR assignments have been made by polarisation transfer techniques.