Bioactive compounds from Combretum erythrophyllum.

Bioactive compounds from Combretum erythrophyllum.
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来自红叶风车草的生物活性化合物。

DOI:
10.1021/np9904410
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发表时间:
2000
影响因子:
5.1
通讯作者:
Kingston,DG
Kingston,DG
中科院分区:
生物学2区
文献类型:
--
作者:
Schwikkard,S;Zhou,BN;Glass,TE;Sharp,JL;Mattern,MR;Johnson,RK;Kingston,DG

文献摘要

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在酵母微量滴定法中,红叶风车子的甲醇提取物对DNA损伤剂显示出抑制生物活性。该提取物的生物测定引导的分级分离产生了两种已知的生物活性化合物,考布他汀A-1和(-)-考布他汀,以及两种新的生物活性葡糖苷,考布他汀A-1 2 '-β-d-葡糖苷(1)和考布他汀B-1 2'-β-d-葡糖苷(2)。新化合物的结构经~ 1H、~(13)C NMR、DEPT、HMQC、HMBC等波谱确证。
A methanol extract ofCombretum erythrophyllumshowed inhibitory bioactivities in a yeast-based microtiter assay for DNA-damaging agents. Bioassay-guided fractionation of this extract yielded two known bioactive compounds, combretastatin A-1 and (−)-combretastatin, and two new bioactive glucosides, combretastatin A-1 2‘-β-d-glucoside (1) and combretastatin B-1 2‘-β-d-glucoside (2). The structures of the new compounds were assigned by1H and13C NMR, DEPT, HMQC, and HMBC spectra.