Flavonoids from Genista tenera

  title={Flavonoids from Genista tenera},
  author={Aires Martins and M. A. Almoster-Ferreira and Carlos M Borges and Am{\'e}lia Pilar Rauter and M. Brum-Bousquet and François Tillequin and Antonio G. Gonz{\'a}lez and Jaime Bermejo},
The ethanol extract of the aerial parts of Genista tenera (Leguminosae) afforded the pyranoisoflavone alpinumisoflavone (1) the isoflavones genistein (2) 5-O-methylgenistein (3), 3’-O-methylorobol (4) 5-O-methylgenistein 7-O-β-d-glucopyranoside (5) and the flavones apigenin (6) and chrysoeriol (7). LSIMS data of compound 1 is presented and discussed, together with its physical and spectroscopic data, namely NMR and UV. 
2 Citations
A phytochemical study of the quinolizidine alkaloids from Genista tenera by gas chromatography-mass spectrometry.
Gas chromatography coupled with mass spectrometry has been used to analyse the alkaloids present in the aerial parts of Genista tenera, characterisation of the constituents was based on comparison of their Kovats retention indexes and electron impact-mass spectrometric data recorded on-line with those of reference compounds and literature data. Expand
Antihyperglycaemic and protective effects of flavonoids on streptozotocin–induced diabetic rats
Almost all the tested compounds effectively protected the liver and kidneys against STZ‐induced damage in rats, and significantly lowered the blood glucose levels of diabetic animals. Expand


Flavonoids from genista ephedroides
Three new flavonoids were isolated from the aerial parts of Genista ephedroides by means of spectroscopic methods and established as hydroxyalpinumisoflavone, ephedroidin and genisteone. Expand
Extractives from poisonous British plants. I. The structure of alpinumisoflavone, a new pyranoisoflavone from Laburnum alpinum J. Presl.
A new pyranoisoflavone isolated from Laburnum alpinum J. Presl. and named alpinumisoflavone has been shown by synthetic and spectroscopic studies to beExpand
Structural characterisation of flavonoids and flavonoid-O-glycosides extracted from Genista tenera by fast-atom bombardment tandem mass spectrometry.
Characteristic fragmentation patterns were observed in all the investigated compounds; the loss of small neutral species from the protonated molecules was useful for identifying the presence of specific functional groups in the A- and B-rings. Expand
Techniques of flavonoid identification.
This book presents a more extensive, up-to-date and thorough guide to techniques used in flavonoid research, and discusses examples of a wide range of spectra, and features diagrams of flavonoids structures, reaction schemes and apparatus. Expand
Characterization of flavone and flavonol aglycones by collision‐induced dissociation tandem mass spectrometry
A mass spectrometric method based on the combined use of fast atom bombardment collisionally-induced dissociation (CID) and tandem mass spectrometry has been used for the structural characterizationExpand