New Antioxidant and Antimicrobial Ellagic Acid Derivatives from Pteleopsis hylodendron

Abstract Bioassay-guided isolation of two new compounds, 3,4-methylenedioxy-3′-O-methyl-4′-O-glucoside ellagic acid (1) and the pteleoellagic acid derivative (2), from the stem bark of PTELEOPSIS HYLODENDRON is reported along with 3,4-methylenedioxy-3′-O-methyl ellagic acid (3), 3,3′-di-O-methyl ell...

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Veröffentlicht in:Planta medica 2001, Vol.67 (4), p.335-339
Hauptverfasser: ATTA-UR-RAHMAN, NGOUNOU, F. N, IQBAL CHOUDHARY, M, MALIK, Shahid, MAKHMOOR, Talat, NUR-E-ALAM, M, ZAREEN, Seema, LONTSI, D, AYAFOR, J. F, SONDENGAM, B. L
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Sprache:eng
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Zusammenfassung:Abstract Bioassay-guided isolation of two new compounds, 3,4-methylenedioxy-3′-O-methyl-4′-O-glucoside ellagic acid (1) and the pteleoellagic acid derivative (2), from the stem bark of PTELEOPSIS HYLODENDRON is reported along with 3,4-methylenedioxy-3′-O-methyl ellagic acid (3), 3,3′-di-O-methyl ellagic acid (4) and 3,3′,4′-tri-O-methyl ellagic acid (5), which were obtained for the first time from this plant. The structures of these compounds were elucidated with the help of spectroscopic studies. Compounds 1 and 4 were found to have significant antioxidant activity, while compounds 1 - 4 showed antibacterial activity against different pathogenic bacteria.
ISSN:0032-0943
1439-0221
DOI:10.1055/s-2001-14306