Two new xanthones from Lomatogonium carinthiacum
Two new xanthones from Lomatogonium carinthiacum
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摘要: AIM:To study the chemical constituents of Lomatogonium carinthiacum(Wulfen) Rchb.METHOD:The CHCl3-soluble fraction was separated by chromatography and the structures of the new compounds were elucidated by spectral experiments.RESULTS:Two new xanthones,1,8-dihydroxy-4,5-dimethoxy-6,7-methylenedioxyxanthone(1),1,4,8-trimethoxyxanthone-6-O-β-D-glucoronyl-(1→6)O-β-D-glucoside(2) were isolated from the whole plant of Lomatogonium carinthiacum.CONCLUSION:Compounds 1 and 2 are new natural products.Abstract: AIM:To study the chemical constituents of Lomatogonium carinthiacum(Wulfen) Rchb.METHOD:The CHCl3-soluble fraction was separated by chromatography and the structures of the new compounds were elucidated by spectral experiments.RESULTS:Two new xanthones,1,8-dihydroxy-4,5-dimethoxy-6,7-methylenedioxyxanthone(1),1,4,8-trimethoxyxanthone-6-O-β-D-glucoronyl-(1→6)O-β-D-glucoside(2) were isolated from the whole plant of Lomatogonium carinthiacum.CONCLUSION:Compounds 1 and 2 are new natural products.
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