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Journal of the Brazilian Chemical Society

Print version ISSN 0103-5053

Abstract

FARIAS, Mareni R. et al. Triterpenoid saponins from Lippia alba (Mill.) N. E. Brown. J. Braz. Chem. Soc. [online]. 2010, vol.21, n.5, pp.927-933. ISSN 0103-5053.  http://dx.doi.org/10.1590/S0103-50532010000500023.

Two saponins were isolated from the leaves of Lippia alba. Their structures were established using one- and two-dimensional NMR spectroscopy and mass spectrometry. These new compounds were elucidated as 3-O-β-D-glucopyranosyl-28-O-(α-L-rhamnopyranosyl-(1?3)-β-D-xylopyranosyl-(1?4)-α-L-rhamnopyranosyl-(1?2)-α-L-arabinopyranosyl)-16α,23-dihydroxy-olean-12-en-28-oic acid, named as Lippiasaponin I (2) and as 3-O-β-D-glucopyranosyl-28-O-(α-L-rhamnopyranosyl-(1?3)-β-D-xylopyranosyl-(1?4)-α-L-rhamnopyranosyl-(1?3)-α-L-arabinopyranosyl)-16α,23-dihydroxy-olean-12-en-28-oic acid, named Lippiasaponin II (3).

Keywords : Lippia alba; verbenaceae; saponins.

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