M. G. Sutiashvili

Learn More
The antioxidant activity of extracts obtained from different parts of Georgian flora species Hamamelis virginiana L., Astragalus caucasicus Pall., Astragalus microcephalus Willd., Vitis vinifera L., Rhododendron ponticum L., Rhododendron Ungernii Trautv., Ginkgo biloba L., Salvia officinalis L., Querqus iberica Stev., Maclura aurantiaca Nutt., Cotinus(More)
The flavonoid composition of Melilotus officinalis (L.) Desr. (Fabaceae) growing in Georgia is studied. Air-dried leaves and flowers (2 kg) were extracted with 80 " ethanol. The alcohol was distilled. The aqueous extract was purified with CHCi 3. The flavonoids (7 g) were obtained by fractionation of the aqueous layer on a polyamide column. Two pure(More)
We previously communicated the isolation from the polar fraction of leaves of Akebia quinata Decne. growing in Georgia of two triterpene glycosides 3-O-(α-L-Rhap-1,2-L-Arap)-28-O-(α-L-Rhap-1,4-β-D-Glcp-1,6-β-D-Glcp) of oleanolic acid and a second glycoside of hederagenin with the same sugar chain [1] that had the structure of the corresponding(More)
A new dimeric iridoid laxoside with the structure 6′′′-O-[6-O-(4″-trans-p-methoxycinnamoyl)-5-hydroxyaucubigenin-(1→1′)-O-β-D-galactopyranosyl]-6″″-O-trans-p-methoxycinnamoylaucubin and 10-O-p-coumaroylharpagide (harpagoside) were isolated from roots of Verbascum laxum Fil. & Jav. The structures of the iridoids were established based on chemical(More)
New flavonoid oligosides were isolated from leaves and flowers of Astragalus falcatus Lam. It was found on the basis of chemical transformations, UV, IR, PMR, 13 C NMR, HMBC, HSQC, 1D-TOCSY, and mass spectral properties that falcoside C had the structure quercetin 3-O-[β-D-glucopyranosyl(1 → 3)-α-Lrhamnopyranosyl(1 → 6)]-β-D-galactopyranoside(More)
Koelreuteria paniculata Laxm. is a saponaceous nee (Sapindaceae) native to Eastern Asia and cultivated as a decorative on the Black-Sea coast of the Caucuses [1]. Triterpenes in the seeds of a saponaceous tree are studied using air-dried ground material (500 g) that is preliminarily extracted with petroleum ether and then exhaustively extracted with 70%(More)
  • 1