New Galloylated Flavonoid Glycosides from Geranium stepporum DAVIS


ŞÖHRETOĞLU D., Sakar M. K. , Sterner O.

HELVETICA CHIMICA ACTA, vol.92, no.3, pp.520-524, 2009 (SCI-Expanded) identifier

  • Publication Type: Article / Review
  • Volume: 92 Issue: 3
  • Publication Date: 2009
  • Journal Name: HELVETICA CHIMICA ACTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.520-524
  • Hacettepe University Affiliated: Yes

Abstract

Two new galloylated flavonoid glycosides, quercetin-3-O-(3 ''-O-galloyl)-beta-glucopyranoside (1) and quercetin-3-O-(3 ''-O-galloyl)-beta-galactopyranoside (2) were isolated from the aerial parts of Geranium stepporum along with the four known flavonoids, quercetin 3-O-beta-glucopyranoside (3), quercetin 3-O-beta-galactopyranoside (4), quercetin 3-O-(6 ''-O-galloyl)-beta-glucopyrinoside (5) and quercetin 3-O-(6 ''-O-galloyl)-beta-galactopyranoside (6). The structure elucidation of the isolated compounds was accomplished by spectroscopic methods (UV, 1D- and 2D-NMR, and ESI-TOF-MS).