Brauhenefloroside e and F; Acylated flavonol glycosides from Stocksia brauhica Linn

Abstract

Two new acylated flavonol glycosides, 3-O-{[2-O-β-D-glucopyranosyl]-3- [O-β-D-glucopyranosyl]-4-[(6-O-p-coumaroyl)-O-β-D-glucopyranosyl]} -α-L-rhamnopyranosyl-kaempferol 7-O-α-L-rhamnopyranoside and 3-O-{2-[(6-O-p-coumaroyl)-O-β-Dglucopyranosyl]-3-[O-β-D- glucopyranosyl]-4-[(6-O-p-coumaroyl)-O-β-D-glucopyranosyl]} -α-L-rhamnopyranosyl-kaempferol 7-O-α-L-rhamnopyranoside, trivially named as brauhenefloroside E (1) and F (2), respectively, were isolated from the fruits of Stocksia brauhica and their structures were elucidated using spectroscopic methods, including 2DNMRexperiments. Show more