Ardisinones A-E, novel diarylundecanones from Ardisia arborescens.

Ardisinones A-E, novel diarylundecanones from Ardisia arborescens.
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DOI:
10.1021/np040041z
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发表时间:
2004-08
影响因子:
5.1
通讯作者:
Ying Zheng;Yun Deng;Feng-E Wu
Ying Zheng;Yun Deng;Feng-E Wu
中科院分区:
生物学2区
文献类型:
--
作者:
Ying Zheng;Yun Deng;Feng-E Wu

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从华北紫金牛的乙醇提取物中分离得到5个新的二芳基十一烷酮化合物,命名为紫金牛酮A-E(1-5)。通过HRESIMS和NMR((1)H,(13)C,DEPT,HSQC,HMBC)确定其结构为11-(2-乙酰氧基-6-羟基苯基)-1-(2,4,6-三羟基苯基)十一烷-1-酮(1),11-(2-乙酰氧基-6-羟基苯基)-1-(2,6-二羟基-4-甲氧基苯基)十一烷-1-酮(2),1-(2,6-二羟基-4-甲氧基苯基)-11-(2,6-二羟基苯基)十一烷-1-酮(3),1-(2,4,6-三羟基苯基)-11-(2,6-二羟基苯基)十一烷-1-酮(4)和1-(2,4,6-三羟基苯基)-11-(2-羟基苯基)十一烷-1-酮(5)。在我们的体外纸片扩散试验中,化合物1和4显示出对三种细菌的轻微抑制,而化合物2和3没有显示出抗微生物活性。
A phytochemical study on an ethanol extract of Ardisia arborescens resulted in the isolation of five new diarylundecanones, named ardisinones A-E (1-5). The structures were established by HRESIMS and NMR ((1)H, (13)C, DEPT, HSQC, HMBC) as 11-(2-acetoxy-6-hydroxyphenyl)-1-(2,4,6-trihydroxyphenyl)undecan-1-one (1), 11-(2-acetoxy-6-hydroxyphenyl)-1-(2,6-dihydroxy-4-methoxyphenyl)undecan-1-one (2), 1-(2,6-dihydroxy-4-methoxyphenyl)-11-(2,6-dihydroxyphenyl)undecan-1-one (3), 1-(2,4,6-trihydroxyphenyl)-11-(2,6-dihydroxyphenyl)undecan-1-one (4), and 1-(2,4,6-trihydroxyphenyl)-11-(2-hydroxyphenyl)undecan-1-one (5). In our in vitro disk diffusion assay, compounds 1 and 4 showed some slight inhibition of three bacteria, while 2 and 3 did not show antimicrobial activity.