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[Studies on the chemical constituents of Chaenomeles speciosa].

Yingbo Yang, Yang Yang, Xia Li, Zhen Yang, Zhijun Wu, You-lan Zheng, Lian-na Sun

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Abstract

OBJECTIVE: To study the chemical constituents of Chaenomeles speciosa. METHODS: Isolation and purification were carried out by varied chromatographies, and structure identifications of compounds were carried out by physical methods, chemical methods and spectral data. RESULTS: Seven compounds were obtained from the ethyl acetate fraction of C. speciosa, and were identified as cinnamic acid (I), 2'-methoxyaucuparin (II), 2-hydroxyl-butanedioic acid-4-methylester (III), esculetin (IV), p-hydroxybenzoic acid (V), chlorogenic acid (VI), caffeic acid (VII). CONCLUSION: Compounds I - IV are obtained from Chaenomeles genus for the first time.

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What this paper is about

OBJECTIVE: To study the chemical constituents of Chaenomeles speciosa. METHODS: Isolation and purification were carried out by varied chromatographies, and structure identifications of compounds were carried out by physical methods, chemical methods and spectral data. RESULTS: Seven compounds were obtained from the ethyl acetate fraction of C. speciosa, and were identified as cinnamic acid (I), 2'-methoxyaucuparin (II), 2-hydroxyl-butanedioic acid-4-methylester (III), esculetin (IV), p-hydroxybenzoic acid (V), chlorogenic acid (VI), caffeic acid (VII). CONCLUSION: Compounds I - IV are obtained from Chaenomeles genus for the first time.

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Available abstract

OBJECTIVE: To study the chemical constituents of Chaenomeles speciosa. METHODS: Isolation and purification were carried out by varied chromatographies, and structure identifications of compounds were carried out by physical methods, chemical methods and spectral data. RESULTS: Seven compounds were obtained from the ethyl acetate fraction of C. speciosa, and were identified as cinnamic acid (I), 2'-methoxyaucuparin (II), 2-hydroxyl-butanedioic acid-4-methylester (III), esculetin (IV), p-hydroxybenzoic acid (V), chlorogenic acid (VI), caffeic acid (VII). CONCLUSION: Compounds I - IV are obtained from Chaenomeles genus for the first time.

Key concepts: Chemistry, Chlorogenic acid, Caffeic acid, Chemical constituents, Cinnamic acid, Ethyl acetate, Organic chemistry, Chromatography

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