Abstract
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.
Original language | English |
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Pages (from-to) | 373-378 |
Number of pages | 6 |
Journal | Bulletin of the Chemical Society of Ethiopia |
Volume | 21 |
Issue number | 3 |
Publication status | Published - Dec 2007 |
Externally published | Yes |
Keywords
- Erythrina sigmoidea
- Isoflavone
- Leguminoseae
- Saponin
- Stem bark
- Triterpenoid