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Two new flavonoids from Retama raetam
M Kassem1, S A Mosharrafa, N A Saleh
1National Research Centre, El-Dokki 12311, Cairo, Egypt.
Fitoterapia
|November 15, 2000
Abstract:
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).