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Chemical constituents from Tarphochlamys affinis

Renbin Huang

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Abstract

AIM To study the chemical constitutents from Tarphochlamys affinis.METHODS 60% ethanolic extract was extracted with ethyl acetate and n-butanol in turn and was isolated by silica gel.Their structrues were identified by NMR and MS analyses.RESULTS Seven compounds were isolated and identified as betulin(1),p-hydroxybenzaldehyde(2),4'-hydroxyacetophenone(3),salicylic acid(4),hydrolytichazaleanin A(5),(6R,7S,8S)-7α-[(β-glucopyranosyl) oxy] lyoniresinol(6),daucosterol(7).CONCLUSION All constituents are isolated for the first time.

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What this paper is about

AIM To study the chemical constitutents from Tarphochlamys affinis.METHODS 60% ethanolic extract was extracted with ethyl acetate and n-butanol in turn and was isolated by silica gel.Their structrues were identified by NMR and MS analyses.RESULTS Seven compounds were isolated and identified as betulin(1),p-hydroxybenzaldehyde(2),4'-hydroxyacetophenone(3),salicylic acid(4),hydrolytichazaleanin A(5),(6R,7S,8S)-7α-[(β-glucopyranosyl) oxy] lyoniresinol(6),daucosterol(7).CONCLUSION All constituents are isolated for the first time.

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Available abstract

AIM To study the chemical constitutents from Tarphochlamys affinis.METHODS 60% ethanolic extract was extracted with ethyl acetate and n-butanol in turn and was isolated by silica gel.Their structrues were identified by NMR and MS analyses.RESULTS Seven compounds were isolated and identified as betulin(1),p-hydroxybenzaldehyde(2),4'-hydroxyacetophenone(3),salicylic acid(4),hydrolytichazaleanin A(5),(6R,7S,8S)-7α-[(β-glucopyranosyl) oxy] lyoniresinol(6),daucosterol(7).CONCLUSION All constituents are isolated for the first time.

Key concepts: Daucosterol, Chemistry, Betulin, Silica gel, Chromatography, Ethyl acetate, Salicylic acid, Chemical constituents

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