Dammarane-type glycosides and long chain sesquiterpene glycosides from Gynostemma yixingense

Fitoterapia. 2010 Jun;81(4):248-52. doi: 10.1016/j.fitote.2009.09.009. Epub 2009 Sep 23.

Abstract

A new dammarane-type glycoside and a new long chain sesquiterpene glycoside, along with nine known compounds 20(S)-ginsenoside Rh1 (3), 20(R)-ginsenoside Rh1 (4), ginsenoside F1 (4), amarantholidoside IV (6), ginsenoside Rc (7), 20(S)-ginsenoside Rg2 (8), 20(R)-ginsenoside Rg2 (9), ginsenoside Rd (10) and gypenoside XLVI (11) were isolated from Gynostemma yixingense. The structures of the new compounds were determined on the basis of spectroscopic analysis, including 1D-, 2D-NMR and ESI-MS techniques as well as by comparison of the spectral data with those of related compounds as 2 alpha,3beta,20(S)-trihydroxydammar-24-ene-3-O-[beta-D-glucopyranosyl((1-->2)-beta-D-glucopyranosyl]-20-O-[beta-D-xylopyranosyl((1-->6)-beta-D-glucopyranoside] (1) (2E,6E)-10-beta-D-glucopyranosyl-1,10,11-trihydroxy-3,7,11-trimethyldodeca-2,6-diene (2).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Dammaranes
  • Glycosides / chemistry*
  • Gynostemma / chemistry*
  • Molecular Structure
  • Plant Components, Aerial / chemistry
  • Plant Extracts / chemistry*
  • Sesquiterpenes / chemistry*
  • Triterpenes / chemistry*

Substances

  • Glycosides
  • Plant Extracts
  • Sesquiterpenes
  • Triterpenes