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Planta Med 1989; 55(6): 556-558
DOI: 10.1055/s-2006-962094
DOI: 10.1055/s-2006-962094
Papers
© Georg Thieme Verlag Stuttgart · New York
(+)-Catechin-5-galloyl Ester as a Novel Natural Polyphenol from the Bark of Acacia nilotica of Sudanese Origin1
1 Dedicated to the late Prof. H. M. Elamin as a token for our great gratitude for his encouragement and pioneering work on Sudan AcaciasFurther Information
Publication History
1988
Publication Date:
24 January 2007 (online)
![](https://www.thieme-connect.de/media/plantamedica/198906/lookinside/thumbnails/10.1055-s-2006-962094-1.jpg)
Abstract
From the bark of Acacia nilotica subsp. tomentosa a novel polyphenol, (+)-catechin-5-galloyl ester (5), was isolated along with gallic acid (1), its methyl ester (2), naringenin (3), and (+)-catechin (4). The structure of 5 was determined by use of mass spectrometry as well as 1H- and 13C-NMR spectroscopy.