STUDIES ON THE CONSTITUENTS OF PURGATIVE CRUDE DRUGS .29. STUDIES ON THE CONSTITUENTS OF THE LEAVES OF CASSIA-TOROSA CAV .3. THE STRUCTURES OF 2 NEW FLAVONE GLYCOSIDES

Two new flavone glycosides were isolated along with diosmetin, luteolin, and luteolin 7-O-glucoside, from the leaves of Cassia torosa CAV., and their structures were established as diosmetin 3'-O-beta-D-glucopyranoside (1) and torosaflavone B 3'-O-beta-D-glucopyranoside (2) (diosmetin 6-C-beta-D-oliopyranosyl-3'-O-beta-D-glucopyranoside) on the basis of spectroscopic and chemical evidence.