Two new flavonoids from Retama raetam.
Two new flavones were isolated from the aerial parts of Retama raetam subsp. raetam. Their structures were established as luteolin 4'-O-neohesperidoside (1) and 5,4'-dihydroxy-(3",4"-dihydro-3", 4"-dihydroxy)-2",2"-dimethylpyrano-(5",6":7,8)-flavone (2) by means of spectroscopic methods. Also present was ephedroidin (4',5, 7-trihydroxy-8-(2-hydroxy-3-butenyl)-flavone).
Kassem
M
M
National Research Centre, El-Dokki 12311, Cairo, Egypt.
Mosharrafa
S A
SA
Saleh
N A
NA
Abdel-Wahab
S M
SM
D005419:Flavonoids / Q000737:chemistry*; D006801:Humans; D047311:Luteolin; D010936:Plant Extracts / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*
C426661:5,4'-dihydroxy-(3'',4''-dihydro-3'',4''-dihydroxy)-2'',2''-dimethylpyrano(5'',6''-7,8)flavone; D005419:Flavonoids; D010936:Plant Extracts; D047311:Luteolin