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Chemical constituents of Hedyotis diffusa Willd

Dali Meng

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Abstract

Objective To study the chemical constituents of Hedyotis diffusa Willd.Methods The compounds were isolated by chromatography on silica gel column and identified on the basis of physico-chemical constants and spectral analysis.Results Seven compounds were isolated and their structures were identified as β-sitosterol(1),daucosterol(2),ursolic acid(3),2-hydroxy-3-methyl-1-methoxyanthraquinone(4),2-hydroxy-7-methyl-3-methoxyanthraquinone(5),E-6-O-p-methoxycinnamoyl scandoside methyl ester(6),E-6-O-p-coumaroyl scandoside methyl ester(7) respectively.Conclusions Compound 5 was obtained from this genus for the first time.

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What this paper is about

Objective To study the chemical constituents of Hedyotis diffusa Willd.Methods The compounds were isolated by chromatography on silica gel column and identified on the basis of physico-chemical constants and spectral analysis.Results Seven compounds were isolated and their structures were identified as β-sitosterol(1),daucosterol(2),ursolic acid(3),2-hydroxy-3-methyl-1-methoxyanthraquinone(4),2-hydroxy-7-methyl-3-methoxyanthraquinone(5),E-6-O-p-methoxycinnamoyl scandoside methyl ester(6),E-6-O-p-coumaroyl scandoside methyl ester(7) respectively.Conclusions Compound 5 was obtained from this genus for the first time.

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Available abstract

Objective To study the chemical constituents of Hedyotis diffusa Willd.Methods The compounds were isolated by chromatography on silica gel column and identified on the basis of physico-chemical constants and spectral analysis.Results Seven compounds were isolated and their structures were identified as β-sitosterol(1),daucosterol(2),ursolic acid(3),2-hydroxy-3-methyl-1-methoxyanthraquinone(4),2-hydroxy-7-methyl-3-methoxyanthraquinone(5),E-6-O-p-methoxycinnamoyl scandoside methyl ester(6),E-6-O-p-coumaroyl scandoside methyl ester(7) respectively.Conclusions Compound 5 was obtained from this genus for the first time.

Key concepts: Daucosterol, Ursolic acid, Silica gel, Chemical constituents, Chemistry, Spectral analysis, Column chromatography, Chromatography

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