Four new saponins from the root bark of Aralia elata

S J Song; N Nakamura; C M Ma; M Hattori; S X Xu

doi:10.1248/cpb.48.838

Four new saponins from the root bark of Aralia elata

Chem Pharm Bull (Tokyo). 2000 Jun;48(6):838-42. doi: 10.1248/cpb.48.838.

Authors

S J Song¹, N Nakamura, C M Ma, M Hattori, S X Xu

Affiliation

¹ Institute of Natural Medicine, Toyama Medical and Pharmaceutical University, Sugitani, Japan.

PMID: 10866145
DOI: 10.1248/cpb.48.838

Abstract

Four new saponins, 3-O-[beta-D-glucopyranosyl(1-->3)-alpha-L-arabinopyranosyl]-16a lpha-hydroxyoleanolic acid 28-O-beta-D-glucopyranosyl ester (called aralia-saponin I), 3-O-[beta-D-glucopyranosyl(1-->3)-alpha-L-arabinopyranosyl]-16a lpha-hydroxyhederagenin 28-O-beta-D-glucopyranosyl ester (aralia-saponin II), 3-O-[beta-D-glucopyranosyl(1-->3)-beta-D-glucopyranosyl(1-->3)-alpha-L-+ ++arabinopyranosyl]-16alpha-hydroxyoleanolic acid 28-O-beta-D-glucopyranosyl ester (aralia-saponin III), 3-O-[beta-D-glucopyranosyl(1-->3)-beta-D-gucopyranosyl(1-->3)-beta -D-glucucopyranosyl]-16alpha-hydroxyoleanolic acid 28-O-beta-D-glucopyranosyl ester (aralia-saponin IV), were isolated from the root bark of Aralia elata (Miq.) Seem., together with nineteen known compounds including glycosides of (20S)-protopanaxadiol and (20S)-protopanaxatriol. Their structures were determined on the basis of chemical and spectroscopy methods.

MeSH terms

Carbohydrate Conformation
Magnetic Resonance Spectroscopy
Plant Roots / chemistry*
Plants, Medicinal / chemistry*
Saponins / chemistry
Saponins / isolation & purification*

Substances

Saponins