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New flavonoids from bioactive extract of Algerian medicinal plant Launeae arborescens
Authors: Khaled Sekkoum, Nasser Belboukhari, Abdelkrim Cheriti
Number of views: 326
Objective: To investigate the butanol fraction of the water/acetone extract and isolate of the new
fl
avonoids 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
fl
avone 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.