Venalstonine and dioxokopsan derivatives from Kopsia fruticosa

Toh-Seok Kam; Yeun-Mun Choo

doi:10.1016/j.phytochem.2004.03.027

Venalstonine and dioxokopsan derivatives from Kopsia fruticosa

Phytochemistry. 2004 Jul;65(14):2119-22. doi: 10.1016/j.phytochem.2004.03.027.

Authors

Toh-Seok Kam¹, Yeun-Mun Choo

Affiliation

¹ Department of Chemistry, University of Malaya, Pantai Valley, 50603 Kuala Lumpur, Malaysia. [email protected]

PMID: 15279982
DOI: 10.1016/j.phytochem.2004.03.027

Abstract

Two new venalstonine derivatives, viz., venacarpines A and B, and one new dioxokopsan derivative, kopsorinine, in addition to the kopsifolines A-F, and 11 other known alkaloids, were isolated from a Malayan Kopsia species. The structures of the new alkaloids were determined using NMR and MS analysis.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Alkaloids / chemistry
Alkaloids / isolation & purification*
Alstonia / chemistry*
Magnetic Resonance Spectroscopy
Malaysia
Mass Spectrometry
Molecular Structure
Optical Rotation
Plant Extracts / chemistry
Plant Leaves / chemistry

Substances

Alkaloids
Plant Extracts