Isoflavonoid Glycosides and Rotenoids from Pongamia pinnata Leaves

• Published in: Zeitschrift für Naturforschung C. A journal of biosciences Vol. 63; no. 1; pp. 1 - 7
• Main Authors: Marzouk, Mohamed S. A., Ibrahim, Magda T., El-Gindi, Omima R., Bakr, Marwa S. Abou
• Format: Journal Article
• Language: English
• Published: Germany Verlag der Zeitschrift für Naturforschung 01.01.2008
• Subjects: Chromatography, Gel; Genistein - chemistry; Genistein - isolation & purification; Glycosides - chemistry; Glycosides - isolation & purification; Isoflavones - chemistry; Isoflavones - isolation & purification; Magnetic Resonance Spectroscopy; Methoxy-Isoflavonoid Diglycosides; Models, Molecular; Plant Leaves - chemistry; Pongamia - chemistry; Pongamia pinnata; Rotenoids; Rotenone - chemistry; Rotenone - isolation & purification; Spectrophotometry, Ultraviolet
• ISSN: 0939-5075; 1865-7125
• DOI: 10.1515/znc-2008-1-201

Chromatographic separation of a 70% aqueous methanol extract (AME) of Pongamia pinnata (Linn.) Pierre (Leguminosae) leaves has led to the isolation of two new isoflavonoid diglycosides, 4′-O-methyl-genistein 7-O-β- -rutinoside (2) and 2′,5′-dimethoxy-genistein 7- O-β- -apiofuranosyl-(1‴→ 6″)-O-β- -glucopyranoside (6), and a new rotenoid, 12a-hydroxy-α-toxicarol (5), together with nine known metabolites, vecinin-2 (1), kaempferol 3-O-β-drutinoside (3), rutin (4), vitexin (7), isoquercitrin (8), kaempferol 3-O-β-d-glucopyranoside (9), 11,12a-dihydroxy-munduserone (10), kaempferol (11), and quercetin (12). Their structures were elucidated on the basis of chemical and spectroscopic analyses.