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Isolation of mangiferin from Bombax malabaricum and structure revision of shamimin. 2003
Abdelaaty A Shahat, and
Rasmeia A Hassan, and
Naglaa M Nazif, and
Sabine Van Miert, and
Luc Pieters, and
Faiza M Hammuda, and
Arnold J Vlietinck
Department of Pharmaceutical Sciences, National Research Centre, Dokki, Cairo, Egypt. shahat@uia.ua.ac.be
Repeated column chromatography of the n-BuOH fraction of the 70% EtOH of the dried leaves of Bombax malabaricum led to the isolation of mangiferin, a xanthone. Mangiferin was identified by UV, 1H- and 13C-NMR spectroscopy and electrospray mass spectrometry. It was found to be identical to shamimin, a compound for which originally a flavonol structure was proposed, and the structure of which has to be revised.
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