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STUDIES ON WATER-SOLUBLE CHEMICAL CONSTITUENTS OF RABDOSIA RUBESCENS

Weisheng Feng

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Abstract

Rabdosia rubescens(Hemls.) Hara was homogenized in an aqueous acetone.Five compounds were isolated over column chromatography on Diaion HP-20?Toyopearl HW-40?MCI Gel and silica gel.Aided with IR,MS and NMR spectra,their structures were identified as α-D-furanfructose(1),ferulic acid(2),n-butyl 3,4-dihydroxy-phenyl-lactate(3),3,4-dihydroxyphenyl-lactic acid(4),ent-7β,20-expoxykaur-16-ene-1α,6β,7β,14β,15β-pentaol-1-O-β-D-glucopy-ranoside(5).Compounds 1,2,3 and 4 were obtained from this plant and it's genus for the first time.

About this research paper

What this paper is about

Rabdosia rubescens(Hemls.) Hara was homogenized in an aqueous acetone.Five compounds were isolated over column chromatography on Diaion HP-20?Toyopearl HW-40?MCI Gel and silica gel.Aided with IR,MS and NMR spectra,their structures were identified as α-D-furanfructose(1),ferulic acid(2),n-butyl 3,4-dihydroxy-phenyl-lactate(3),3,4-dihydroxyphenyl-lactic acid(4),ent-7β,20-expoxykaur-16-ene-1α,6β,7β,14β,15β-pentaol-1-O-β-D-glucopy-ranoside(5).Compounds 1,2,3 and 4 were obtained from this plant and it's genus for the first time.

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Available abstract

Rabdosia rubescens(Hemls.) Hara was homogenized in an aqueous acetone.Five compounds were isolated over column chromatography on Diaion HP-20?Toyopearl HW-40?MCI Gel and silica gel.Aided with IR,MS and NMR spectra,their structures were identified as α-D-furanfructose(1),ferulic acid(2),n-butyl 3,4-dihydroxy-phenyl-lactate(3),3,4-dihydroxyphenyl-lactic acid(4),ent-7β,20-expoxykaur-16-ene-1α,6β,7β,14β,15β-pentaol-1-O-β-D-glucopy-ranoside(5).Compounds 1,2,3 and 4 were obtained from this plant and it's genus for the first time.

Key concepts: Silica gel, Chemistry, Ferulic acid, Column chromatography, Chromatography, Acetone, Lactic acid, Organic chemistry

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