Hasan Kırmızıbekmez

Yeditepe University, Faculty of Pharmacy, Department of Pharmacognosy, Kayışdağı, TR-34755, İstanbul, Türkiye

Abstract: From the MeOH extract of the leaves of Digitalis viridiflora five phenylethanoid glycosides (1-5) including a new one were isolated. The structure of the new compound was established as 3,4-dihydroxy-β-phenylethoxy-O-β-quinovopyranosyl-(1 ® 6)-4-O-caffeoyl-β-glucopyranoside (viridifloroside, 1) based on extensive 1D- and 2D-NMR spectroscopy as well as MS. Compound 1 is the first example of a phenylethnoid glycoside bearing a quinovopyranose in its structure. The chemotaxonomic importance of the isolates was also discussed.

Keywords: Digitalis viridiflora ; Plantaginaceae; phenylethanoid glycosides; viridifloroside; chemotaxonomy. © 2015 ACG Publications. All rights reserved.