Synthesis of Kaempferol-3-0-(3",4'' -di-O-a-L-rhamnopyranosy^-^-D-galactopyranoside and its Comparison with the Natural Ascaside Isolated from Astragalus caucasicus
نویسندگان
چکیده
The trisaccharide, 3,4-di-0-(a-L-rhamnopyranosyl)-D-galactose was synthesized using benzyl 2,6-di-0-benzyl-/?-D-galactopyranoside as starting compound. Its acetobromo derivative was coupled with 4',7-di-O-benzyl-kaempferol. The structure of the synthetic kaempferol trioside was characterised by different spectroscopic methods (UV, IR, XH, 13C NMR and MS). Chromatographic and mass spectrometric comparison of the synthetic product with ascaside precluded their identity.
منابع مشابه
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