Flavone and flavonol glycosides from Astragalus eremophilus and Astragalus vogelii.
Two new rhamnocitrin glycosides (1 and 2) were isolated from the aerial parts of Astragalus vogelii, along with one known rhamnocitrin glycoside (3). Two known flavonol glycosides (4 and 5) and four known flavone derivatives (6-9) were isolated from the aerial parts of Astragalus eremophilus. Their structures were elucidated by extensive spectroscopic methods including 1D- (1H, 13C and TOCSY) and 2D-NMR (DQF-COSY, HSQC, HMBC) experiments, as well as ESIMS analysis.
Dipartimento di Scienze Farmaceutiche, Università degli Studi di Salerno, via Ponte don Melillo, 84084 Fisciano, SA, Italy.
Angela
A
Perrone
Milena
M
Masullo
Alberto
A
Plaza
Arafa
A
Hamed
Sonia
S
Piacente
D027883:Astragalus Plant / Q000737:chemistry*; D047309:Flavones / Q000737:chemistry*; D044948:Flavonols / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D035261:Plant Components, Aerial / Q000737:chemistry
D047309:Flavones; D044948:Flavonols; D006027:Glycosides