Three triterpene esters from zizyphus jujuba

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• 作者：Shoei-Sheng ; Lee ; Buh-Fang ; Lin ; Karin ; C. Liu
• 关键词：Zizyphus jujuba var. spinosa ; Rhamnaceae ; Suan Tsao Zen ; Triterpene ester ; 2-O-protocatechuoylalphitolic acid ; 2α ; -hydroxypyracrenic acid ; 3-O-protocatechuoylceanothic acid ; ¹H and ¹³C NMR
• 刊名：Phytochemistry
• 出版年：1996
• 出版时间：November, 1996
• 年：1996
• 卷：43
• 期：4
• 页码：847-851
• 全文大小：315 K

文摘

Further separation of the water-insoluble fraction of the ethanol extract from the root of Zizyphus jujuba var. spinosa led to the isolation of three new triterpene esters: 2-O-protocatechuoylaliphitolic acid, 2α-hydroxypyracrenic acid and 3-O-protocatechuoylceanothic acid. The latter two compounds were characterized as the triacetate and tetra-O-methylated derivative, respectively.