- Turkish Journal of Chemistry
- Vol: 35 Issue: 5
- Polyphenolic compounds from Geranium purpureum Vill. growing in Turkey
Polyphenolic compounds from Geranium purpureum Vill. growing in Turkey
Authors : Didem Şöhretoğlu, Mahmut Koray Sakar, Olov Sterner
Pages : 809-814
Doi:10.3906/tar-1204-58
View : 12 | Download : 4
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :Two new flavonol derivatives, Geranioside A (kaempferol 3-[3-(a-rhamnopyranosyl)-4-oxy-5-hydroxy-6-methyl-3,4-dihyropyran-2H- 2-pyranoside]) (1) and Geranioside B (quercetin 3-[3-(a-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-b -glucopyranoside (5), quercetin 3-O-b -glucopyranoside (6), and kaemferol-3-O-b -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