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Chemical constituents from Elsholtzia rugulosa

Wang Yi-fen

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Abstract

Objective To study the chemical constituents from Elsholtzia rugulosa.Methods The compounds were isolated by column chromatography on silica gel,Sephadex LH-20,and MCI-gel CHP-20P.The structures were identified by means of NMR and MS analyses.Results Twelve compounds were isolated and their structures were identified as 4′,5-dihydroxy-7-methoxyflavone(Ⅰ),5-hydroxy-4′,6,7-trimethoxyflavone(Ⅱ),5,6-dihydroxy-3′,4′,7,8-tetramethoxyflavone(Ⅲ),apigenin(Ⅳ),kaempferol(Ⅴ),quercetin(Ⅵ),1H-indole-3-carboxylic acid(Ⅶ),ursolic acid(Ⅷ),oleanolic acid(Ⅸ),ergosta-7-en-3β-ol(Ⅹ),β-sitosterol(Ⅺ),and β-daucosterol(ⅩⅡ).Conclusion Compounds Ⅰ-Ⅹ are obtained from the Plants of Elsholtzia Willd.for the first time.

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What this paper is about

Objective To study the chemical constituents from Elsholtzia rugulosa.Methods The compounds were isolated by column chromatography on silica gel,Sephadex LH-20,and MCI-gel CHP-20P.The structures were identified by means of NMR and MS analyses.Results Twelve compounds were isolated and their structures were identified as 4′,5-dihydroxy-7-methoxyflavone(Ⅰ),5-hydroxy-4′,6,7-trimethoxyflavone(Ⅱ),5,6-dihydroxy-3′,4′,7,8-tetramethoxyflavone(Ⅲ),apigenin(Ⅳ),kaempferol(Ⅴ),quercetin(Ⅵ),1H-indole-3-carboxylic acid(Ⅶ),ursolic acid(Ⅷ),oleanolic acid(Ⅸ),ergosta-7-en-3β-ol(Ⅹ),β-sitosterol(Ⅺ),and β-daucosterol(ⅩⅡ).Conclusion Compounds Ⅰ-Ⅹ are obtained from the Plants of Elsholtzia Willd.for the first time.

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Available abstract

Objective To study the chemical constituents from Elsholtzia rugulosa.Methods The compounds were isolated by column chromatography on silica gel,Sephadex LH-20,and MCI-gel CHP-20P.The structures were identified by means of NMR and MS analyses.Results Twelve compounds were isolated and their structures were identified as 4′,5-dihydroxy-7-methoxyflavone(Ⅰ),5-hydroxy-4′,6,7-trimethoxyflavone(Ⅱ),5,6-dihydroxy-3′,4′,7,8-tetramethoxyflavone(Ⅲ),apigenin(Ⅳ),kaempferol(Ⅴ),quercetin(Ⅵ),1H-indole-3-carboxylic acid(Ⅶ),ursolic acid(Ⅷ),oleanolic acid(Ⅸ),ergosta-7-en-3β-ol(Ⅹ),β-sitosterol(Ⅺ),and β-daucosterol(ⅩⅡ).Conclusion Compounds Ⅰ-Ⅹ are obtained from the Plants of Elsholtzia Willd.for the first time.

Key concepts: Ursolic acid, Silica gel, Chemistry, Oleanolic acid, Kaempferol, Sephadex, Apigenin, Daucosterol

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