Isomeric Di-C-glycosylflavones in Fig (Ficus carica L.)

Abstract

Two isomeric C-glycosides of apigenin (apigenin-6-C-glucosyl-8-C-arabinoside (schaftoside), apigenin-6-C-arabinosyl-8-C-glucoside (isoschaftoside)) were isolated from leaves of Ficus carica with preparative HPLC. 1The glycosides were identified by UV-, 1 H-NMR-, 13 C-NMR-spectroscopy and FAB-MS. Their concentration in fruits and leaves were determined by gradient HPLC on reversed phase material.