Flavonoids from Cressa cretica

Abstract

The aerial parts of Cressa cretica L. yielded five flavonoids that were identified as quercetin (1), quercetin-3-O-glucoside (2), kampferol-3-O- glucoside (3), kampferol-3-O-rhamnoglucoside (4), and rutin (5). All of the isolated flavonoids were identified by spectroscopic methods (UV, FAB-MS, 1H NMR and 13C NMR) and in comparison with literature data. The isolated flavonoids, except quercetin, are reported here for the first time from Cressa cretica L.