Chemical analysis of the stem bark of Erythrina sigmoidea (Leguminoseae) yielded two known isoflavones, 6,8-diprenylgenisteine (3) and warangalone (4) as well as a new triterpenoid saponin designated sigmoiside E (1). Its structure was established by chemical and spectroscopic means as 16-O-β-D- galactopyranosyl maniladiol (1). Sigmoiside E exhibited antibacterial activity against gram-negative bacteria.
|Number of pages||6|
|Journal||Bulletin of the Chemical Society of Ethiopia|
|Publication status||Published - Dec 2007|
- Erythrina sigmoidea
- Stem bark