A new acylated flavonol from the aerial parts of Asteriscus maritimus (L.) Less (Asteraceae)

Marwa I. Ezzat, Shahira M. Ezzat, Kadriya S. El Deeb, Ahlam M. El Fishawy, Sayed A. El-Toumy
2016 Figshare  
Phytochemical investigation of the flowering aerial parts of Asteriscus maritimus (L.) Less (Asteraceae) led to the isolation of a new compound: patuletin 7-O-β-D-[(2″′S) 6″(3″′-hydroxy-2″′-methyl-propanoyl)] glucopyranoside, together with five known metabolites; β-sitosterol 2, chlorogenic acid 3, P-hydroxy -methylbenzoate 4, luteolin 5 and protocatechuic acid 6. The structures of the isolated compounds were determined by comprehensive analyses of its 1D and 2D NMR, HRMS and compared with
more » ... compared with previously known analogues. The ethanolic extract of the flowering aerial parts of A. maritimus was found to be safe (LD50 = 4.6 mg/kg) and possess significant antioxidant and anti-inflammatory activities and this was in accordance with its high phenolic content (107.36 ± 0.051 mg GAE/g extract). Patuletin 7-O- β-D-[(2ˋˋˋS) 6ˋˋ(3ˋˋˋ-hydroxy-2ˋˋˋ-methyl-propanoyl)]glucopyranosideAsterisc
doi:10.6084/m9.figshare.2069301 fatcat:d74vqdqs7feunfq47xdk6b5jku