Oleanane saponins from Stylosanthes erecta.
Five new oleanane saponins (1-5) together with four know flavonol glycosides were isolated from the aerial parts of Stylosanthes erecta. Their structures were elucidated by 1D and 2D NMR experiments including 1D-TOCSY, DQF-COSY, ROESY, HSQC, and HMBC spectroscopy, as well as ESIMS analysis. The aglycone moieties of 1-4 were assigned as new oleanane derivatives.
De Leo
Marinella
M
Dipartimento di Chimica Bioorganica e Biofarmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy.
Sanogo
Rokia
R
De Tommasi
Nunziatina
N
Braca
Alessandra
A
D007887:Fabaceae / Q000737:chemistry*; D008302:Mali; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*
D012503:Saponins; C413246:oleanane; D009828:Oleanolic Acid