VITISIN-A AND CIS-VITISIN-A, STRONGLY HEPATOTOXIC PLANT OLIGOSTILBENES FROM VITIS-COIGNETIAE (VITACEAE)

被引:36
作者
OSHIMA, Y [1 ]
KAMIJOU, A [1 ]
MORITANI, H [1 ]
NAMAO, K [1 ]
OHIZUMI, Y [1 ]
机构
[1] TOHOKU UNIV, INST PHARMACEUT, AOBA KU, SENDAI, MIYAGI 980, JAPAN
关键词
D O I
10.1021/jo00056a016
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The methanolic extract of one of the common Vitaceaeous plants, Vitis coignetiae, showed marked prevention against injuries of primary cultured rat liver cells induced by carbon tetrachloride and D-galactosamine. Activity-guided fractionation of the extract resulted in the isolation of not only an antihepatotoxic stilbene derivative, epsilon-viniferin, but also novel oligostilbenes, vitisin A and its stereoisomer cis-vitisin A as a mixture. The structures of the oligostilbenes have been determined on the basis of spectroscopic evidence, especially by 2D NMR methods such as HMBC spectra of degradative products. The mixture of vitisin A and cis-vitisin A was found to cause marked liver lesions in mice.
引用
收藏
页码:850 / 853
页数:4
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