高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (6): 1107.doi: 10.7503/cjcu20141146

• 有机化学 • 上一篇    下一篇

棘孢曲霉中分离的2个新化合物

徐燕, 田沙沙, 俞和, 杨文智, 朱华结()   

  1. 河北大学药物化学与分子诊断重点实验室, 药学院, 保定 071002
  • 收稿日期:2014-12-31 出版日期:2015-06-10 发布日期:2015-05-15
  • 作者简介:联系人简介: 朱华结, 男, 博士, 教授, 主要从事天然有机化学、 不对称合成化学及理论计算的实际应用研究. E-mail:hjzhu@mail.kib.ac.cn

Isolation and Identification of Two New Compounds from Aspergillus Aculeatus

XU Yan, TIAN Shasha, YU He, YANG Wenzhi, ZHU Huajie*()   

  1. The Key Laboratory of Medicinal Chemistry and Molecular Diagnostics, College of Pharmaceutical Science, Hebei University, Baoding 071002, China
  • Received:2014-12-31 Online:2015-06-10 Published:2015-05-15
  • Contact: ZHU Huajie E-mail:hjzhu@mail.kib.ac.cn

摘要:

从土壤真菌棘孢曲霉(Aspergillus aculeatus)中分离得到2个新化合物和2个已知化合物, 采用质谱(MS)、 一维核磁共振波谱(1D NMR)、 异核多键相关谱(HMBC)、 异核单量子相关谱(HSQC)和旋转坐标NOE谱(ROESY)等方法对化合物的结构进行了鉴定, 化合物2的顺反构型通过ROESY数据进一步确定. 鉴定结果表明, 2个新化合物分别为2-(2'-4'-6'-三羟基)-7-羟基-5-甲基色原酮{2-(2',4',6'-trihydroxyphenyl)-(7-hydroxy-5-methyl)chromone}(1)和(E)-4-羟基-3-[(3-甲基-4-羟基-2-丁烯)氧代]苯甲酸{(E)-4-hydroxy-3-[(4-hydroxy-3-methylbut-2-en-1-yl)oxy]benzoic acid}(2); 2个已知化合物分别为(S)-2-[(2'-羟基)丙基]-5-甲基-7-羟基色原酮{2-(2'-hydroxypropyl)-5-methyl-7-hydroxychromone}(3)和(3R,4S)-8-羟基-3,4,5-三甲基-6酮-4,6-二氢-3H-异色烯-7-羧酸{(3R,4S)-8-hydroxy-3,4,5-trimethyl-6-oxo-4,6-dihydro-3H-isochromene-7-carboxylic acid}(4). 活性测试结果表明, 这4个化合物均表现出一定的抗氧化活性.

关键词: 真菌, 棘孢曲霉, 核磁共振, 黄酮, 抗氧化活性

Abstract:

In order to investigate new bioactive compounds, a piece of fungi Aspergillus aculeatus was obtained from the Jinyun mountain soil in Chongqing, China. By fermentation using Potato Dextrose(PD) within 14 d at 28 ℃, the extraction of ethyl acetate(103 g) was obtained. The extraction was then used for isolation of compounds through a series of study by classical separation methods, for example Octadecyl Silane(ODS) and Sephadex LH-20. Two new compounds 2-(2',4',6'-trihydroxy phenyl)benzene-(7-hydroxy-5-methyl) chromone(1) and (E)-4-hydroxy-3-[(4-hydroxy-3-methylbut-2-en-1-yl)oxy] benzoic acid(2) were obtained. The structures were elucidated using mass spectrometry(MS), one demensional nuclear magnetic resonance spectroscopy(1D NMR), heteronuclear multiple bond correlation(HMQC), heteronuclear single quanturn correlation(HMBC) and rotating-frame overhauser effect spectroscopy(ROESY). Other two known compounds 2-(2'-hydroxypropyl)-5-methyl-7-hydroxychromone(3) and (3R, 4S)-8-hydroxy-3,4,5- trime-thyl-6-oxo-4,6-dihydro-3H-isochromene-7-carboxylic acid(4) were obtained. Compounds 2 to 4 exhibited some 2,2-diphenyl-1-picrylhydrazyl(DPPH) antioxidant activity.

Key words: Fungi, Aspergillus aculeatus, Nuclear magnetic resonance spectroscopy(NMR), Flavanoid, Antioxidant activity

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