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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.

Das folhas de Lippia alba foram isoladas duas saponinas. As estruturas destas saponinas foram estabelecidas empregando métodos espectroscópicos, principalmente RMN mono e bi-dimensional e espectrometria de massas. Estes novos compostos foram caracterizados como ácido 3-O-β-D-glucopiranosil-28-O-(α-L-rhamnopiranosil-(1?3)-β-D-xilopiranosil-(1?4)-α-L-rhamnopiranosil-(1?2)-α-L-arabinopiranosil)-16α,23-di-hidróxi-olean-12-en-28-óico, designada Lippiasaponina I (2) e como ácido 3-O-β-D-glucopiranosil-28-O-(α-L-rhamnopiranosil-(1?3)-β-D-xilopiranosil-(1?4)-α-L-rhamnopiranosil-(1?3)-α-L-arabinopiranosil)-16α,23-di-hidróxi-olean-12-en-28-óico, designada Lippiasaponina II (3).

Keywords : Lippia alba; verbenaceae; saponins.

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