ISOLATION AND CYTOTOXICITY OF 2 NEW FLAVONOIDS FROM CHRYSOSPLENIUM-GRAYANUM AND RELATED FLAVONOLS

被引：18

作者：

ARISAWA, M ^{[1
]}

HAYASHI, T ^{[1
]}

SHIMIZU, M ^{[1
]}

MORITA, N ^{[1
]}

BAI, H ^{[1
]}

KUZE, S ^{[1
]}

ITO, Y ^{[1
]}

机构：

[1] TOYAMA MED & PHARMACEUT UNIV,FAC MED,DEPT ANESTHESIOL,SUGITANI,TOYAMA 93001,JAPAN

来源：

JOURNAL OF NATURAL PRODUCTS | 1991年 / 54卷 / 03期

关键词：

D O I：

10.1021/np50075a029

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

In view of the observation that a CHCl3-soluble fraction of the MeOH extract of Chrysosplenium grayanum has shown cytotoxic activity in the KB cell in vitro system, the fraction has been further fractionated to furnish five known flavonoids (chrysosplenols B, D, and E, retusin, and brickellin), 3,5-dihydroxy-4-methoxybenzoic acid methyl ester, and two new flavonoids named chrysosplenols F {1} and G {2}. The structures of the new flavonoids have been elucidated to be 5,4',5'-trihydroxy-3,7,2'-trimethoxyflavone {1} and 5,5'-dihydroxy-3,7,2',4'-tetramethoxyflavone {2} on the basis of spectral data. Certain of the isolated compounds and related flavonol aglycones showed marginal activities against KB cells in vitro.

引用

页码：898 / 901

页数：4

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