Kaempferol triosides from Reseda muricata

Abstract

A flavonoid trioside and its coumaryl ester together with seven known flavonoids and five phenolic acids were isolated from the leaves of Reseda muricata. Their structures were elucidated by spectroscopic methods including UV, FAB MS, 1H, 13C and 2D-NMR, DEPT, HMBC and HMQC experiments. The two compounds were identified as kaempferol 3- O-β- d-glucopyranosyl-(1‴ → 2″)- O-α- l-rhamnopyranoside 7- O-β- d-glucopyranoside and kaempferol 3- O-β- d-glucopyranosyl-(1‴ → 2″)- O-α- l rhamnopyranoside 7- O-β- d-(6 ⁗- O- E-coumarylglucopyranoside), respectively.