Eleutherosides are a diverse group of chemical compounds that were isolated from roots of the herb ''

Eleutherococcus senticosus ''Eleutherococcus senticosus'' is a species of small, woody shrub in the family Araliaceae native to Northeastern Asia. It may be colloquially called devil's bush, Siberian ginseng, eleuthero, ''ciwujia'', ''Devil's shrub'', ''shigoka'', ''touc ...

'' which is commercially offered mostly as extracts. Eleutheroside A is a

saponin Saponins (Latin "sapon", soap + "-in", one of), also selectively referred to as triterpene glycosides, are bitter-tasting usually toxic plant-derived organic chemicals that have a foamy quality when agitated in water. They are widely distributed ...

and

sterol Sterol is an organic compound with formula , whose molecule is derived from that of gonane by replacement of a hydrogen atom in position 3 by a hydroxyl group. It is therefore an alcohol of gonane. More generally, any compounds that contain the go ...

glycoside In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosides. ...

while other eleutherosides, such as eleutheroside B (syringin), are phenyl propanoid glycosides. They serve as marker compounds for the

Thin layer chromatography Thin-layer chromatography (TLC) is a chromatography technique used to separate non-volatile mixtures. Thin-layer chromatography is performed on a sheet of an inert substrate such as glass, plastic, or aluminium foil, which is coated with a t ...

identification of ''

'' herbal preparations and

dietary supplement A dietary supplement is a manufactured product intended to supplement one's diet by taking a pill, capsule, tablet, powder, or liquid. A supplement can provide nutrients either extracted from food sources or that are synthetic in order ...

s. Eleutheroside E is an optical isomer of acanthoside D, which is one of the glycosides isolated from the cluster-flowering acanthopanax and represents the di-β-D-glucoside of (−)-

syringaresinol Syringaresinol is a lignan found in ''Castela emoryi'', in ''Prunus mume''. This compound inhibits ''Helicobacter pylori'' motility ''in vitro ''In vitro'' (meaning in glass, or ''in the glass'') studies are performed with microorganisms, c ...

.Identity of eleutheroside E with acanthoside D. Yu. S. Ovodov, G. M. Frolova, L. A. Elyakova and G. B. Elyakov, Bulletin of the Academy of Sciences of the USSR, Division of chemical science, November 1965, Volume 14, Issue 11, pages 2035-2036, File:Eleutheroside A.svg, Eleutheroside A
(daucosterol) File:Syringin.svg, Eleutheroside B
(syringin) File:Ethyl galactopyranoside.svg, Eleutheroside C
(ethyl galactoside) File:Eleutheroside D.svg, Eleutheroside D

References

{{Reflist Eleutherococcus Glucosides