Ten triterpenoid glycosides have been isolated from the roots of Medicago sativa L. (Leguminosae) including eight new glycosides and two previously known, medicagenic acid 3-O-β-D-glucopyranoside and hederagenin 3-O-[β-D-glucopyranosyl(1→2)-α-L-arabinopyranoside]. Four new saponins were identified as glycosides of medicagenic acid, four from hederagenin. Their structures were elucidated by a combination of chemical and spectroscopic techniques (IR, EI/MS, NMR 1H and 13C). In some cases we used fast atom bombardment mass spectra (FAB/MS), NMR 1H difference spectra (homonuclear double resonance, Overhauser effect), NMR 13C partially decoupled spectra (off resonance), and two-dimensional 1H-1H correlating spectra (COSY 1H-1H). The inhibitory effects of these glycosides on growth and seed germinations and on some phytopathogenic bacteria have also been tested.
CITATION STYLE
Timbekova, A. E., Isaev, M. I., & Abubakirov, N. K. (1996). Chemistry and biological activity of triterpenoid glycosides from Medicago sativa. In Advances in Experimental Medicine and Biology (Vol. 405, pp. 171–182). Springer New York LLC. https://doi.org/10.1007/978-1-4613-0413-5_14
Mendeley helps you to discover research relevant for your work.