One new triterpenoid saponin, named piptadeniaoside (1), along with two known saponins (2-3) have been isolated from the stem bark of Piptadeniastrum africanum. After previous isolation of flavone derivatives from this plant, new phytochemical investigations were performed for its saponin content. Their structures were established by direct interpretation of their spectral data, mainly HRESIMS, 1D NMR (1H, 13C NMR, DEPT) and 2D NMR (COSY, NOESY, HSQC and HMBC), and by comparison with the literature data.
All Science Journal Classification (ASJC) codes
- Agronomy and Crop Science
- Plant Science