title: New flavonoids from bioactive extract of Algerian medicinal plant Launeae arborescens.
abstract: OBJECTIVE
  To investigate the butanol fraction of the water/acetone extract and isolate of the new flavonoids from Launeae arboescens.
  
  
  METHODS
  The compounds were isolated by liquid chromatographic methods and their structures were identified by using spectroscopic analysis.
  
  
  RESULTS
  THE ISOLATED COMPOUNDS WERE IDENTIFIED AS: 7-O-[α-rhamnopyranosyl 4',5,6-Trihydroxy flavone 1,4',5'-Di-Methoxy 7-(5″-Me Hexan)1-oyl flavanone 2, 3″-isopropyl pyrano [1″:7,4″:6] 3',4',5',5-Tetrahydroxy flavanone 3,5,4',5'-Tri-Hydroxy 7-(3″-Me butan) -yl flavanone 4, 5,7-Dihydroxy-2',4',5' -trimethoxy-isoflavanone 5,5,6,7,4'-tetrahydroxy flavonol 6,7-O-[α-rhamnopyranosyl-(1->6)-β-glucopyranosyl]- 4',5,7-tri-hydroxy-flavanone 7,7-O-[α-rhamnopyranosyl-(1->6)-β-glucopyranosyl] 3',5-Dihydroxy 4'-Methoxy flavanone 8.
  
  
  CONCLUSIONS
  The presence of different types of bioactive flavonoids in Launeae arboescens extract can explain the large ethnopharmacological uses and the potential activity of this medicinal plant.
authors.affiliation: Bioactive Molecule & Chiral separation Laboratory, University of Bechar, Bechar, 08000, Algeria.
authors.forename: Khaled
authors.initials: K
authors.lastname: Sekkoum
authors.affiliation: Bioactive Molecule & Chiral separation Laboratory, University of Bechar, Bechar, 08000, Algeria ; Phytochemistry & Organic Synthesis Laboratory, University of Bechar, Bechar, 08000, Algeria.
authors.forename: Nasser
authors.initials: N
authors.lastname: Belboukhari
authors.affiliation: Phytochemistry & Organic Synthesis Laboratory, University of Bechar, Bechar, 08000, Algeria.
authors.forename: Abdelkrim
authors.initials: A
authors.lastname: Cheriti
keywords: Asteraceae; Flavanone; Glycosid flavanone; Isoflavanone; Launeae arborescens