Polyphenolic compounds from Geranium purpureum Vill. growing in Turkey


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

TURKISH JOURNAL OF CHEMISTRY, vol.35, no.5, pp.809-814, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 5
  • Publication Date: 2011
  • Doi Number: 10.3906/kim-1103-52
  • Title of Journal : TURKISH JOURNAL OF CHEMISTRY
  • Page Numbers: pp.809-814

Abstract

Two new flavonol derivatives, Geranioside A (kaempferol 3-[3-(alpha-rhamnopyranosyl)-4-oxy-5-hydroxy-6-methyl-3,4-dihyropyran-2H-2-pyranoside]) (1) and Geranioside B (quercetin 3-[3-(alpha-rhamnopyranosyl)-4-oxy-5-hydroxy-6-methyl-3,4-dihyropyran-2H-2-pyranoside]) (2), along with 5 known flavonols (quercetin (3), kaempferol (4), quercetin 4'-O-beta-glucopyranoside (5), quercetin 3-O-beta-glucopyranoside (6), and kaemferol-3-O-beta-glucopyranoside (7)), a gallic acid derivative (methyl gallate (8)), and a hydrolysable tannin (pusilagin (9)), were isolated from the aerial parts of Geranium purpureum. The structures of the isolated compounds were elucidated on the basis of UV, IR, and 1D-and 2D-NMR experiments as well as TOF-MS.