Polyphenolic compounds from Geranium purpureum Vill. growing in Turkey

Authors

DİDEM ŞÖHRETOĞLU
MAHMUT KORAY SAKAR
OLOV STERNER

DOI

10.3906/kim-1103-52

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.

Keywords

Geranium purpureum, Geraniaceae, flavonoids, Geraniosides A and B

First Page

809

Last Page

814

Recommended Citation

ŞÖHRETOĞLU, DİDEM; SAKAR, MAHMUT KORAY; and STERNER, OLOV (2011) "Polyphenolic compounds from Geranium purpureum Vill. growing in Turkey," Turkish Journal of Chemistry: Vol. 35: No. 5, Article 12. https://doi.org/10.3906/kim-1103-52
Available at: https://journals.tubitak.gov.tr/chem/vol35/iss5/12