有机化学 ›› 2023, Vol. 43 ›› Issue (9): 3319-3322.DOI: 10.6023/cjoc202303033 上一篇    下一篇

研究简报

禾谷镰刀菌中一个新的聚酮类化合物

丁卫忠a,d, 张炳文b, 薛彦青d, 林雨琦d, 汤志军d, 王婧d, 杨文超b, 王晓峰c,d,*(), 刘文a,d,*()   

  1. a 中国科学技术大学化学系 合肥 230026
    b 华中师范大学化学学院 农药与化学生物学教育部重点实验室 武汉 430079
    c 国科大杭州高等研究院 化学与材料科学学院 杭州 310024
    d 中国科学院上海有机化学研究所 生命有机化学国家重点实验室 上海 200032
  • 收稿日期:2023-03-22 修回日期:2023-04-25 发布日期:2023-05-05
  • 作者简介: 共同第一作者.
  • 基金资助:
    科技部重大专项(2022YFC2303100); 国家自然科学基金(22193070); 国家自然科学基金(32030002); 浙江省博士后科研项目择优资助项目

A New Polyketide from Fusarium graminearum

Weizhong Dinga,d, Bingwen Zhangb, Yanqing Xued, Yuqi Lind, Zhijun Tangd, Jing Wangd, Wenchao Yangb, Xiaofeng Wangc,d(), Wen Liua,d()   

  1. a Department of Chemistry, University of Science and Technology of China, Hefei 230026
    b Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079
    c School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024
    d State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032
  • Received:2023-03-22 Revised:2023-04-25 Published:2023-05-05
  • Contact: E-mail: xfwang@sioc.ac.cn;wliu@sioc.ac.cn
  • About author: These authors contributed equally to this work.
  • Supported by:
    National Key Research and Development Program of China(2022YFC2303100); National Natural Science Foundation of China(22193070); National Natural Science Foundation of China(32030002); Postdoctoral Science Preferential Funding of Zhejiang Province

镰刀菌属真菌能产生结构多样的活性天然产物. 对该属真菌Fusarium graminearum培养物的萃取物进行化学成分研究, 从中分离得到一个新的聚酮类化合物, 并将其命名为fusarane A (1). 综合运用高分辨质谱、一维、二维的核磁共振波谱和X射线单晶衍射方法对化合物1的结构进行了鉴定. 从结构上看, 化合物1具有少见的共轭多烯片段, 并且其所有的双键构型都为E构型. 此外, 生物活性测试结果表明, 在联用具有增强抗生素活性的佐剂双硫仑(10 μg/mL)时, 化合物1对金黄色葡萄球菌S. aureus ATCC 29213有潜在的抗菌活性, 最小抑菌浓度为32 μg/mL.

关键词: 禾谷镰刀菌, 天然产物, 聚酮, 抗菌活性

The fungus Fusarium species is well known for producing bioactive natural products with diverse structures. A chemical investigation on the cultures extract of the Fusarium graminearum led to the isolation of one new polyketide, fusarane A (1). Its structure was elucidated on the basis of extensive HRESIMS, 1D and 2D-NMR spectra data analysis, and single-crystal X-ray diffraction. Structurally, compound 1 has a rare conjugated polyene moiety in which configurations of all double bonds were determined to be E. Furthermore, 1 showed potent inhibitory activity against S. aureus ATCC 29213 with the MIC value of 32 μg/mL when assayed in combination with disulfram (10 μg/mL), an established antibiotic adjuvant that augmented the activity of antibiotics.

Key words: Fusarium graminearum, natural product, polyketide, antibacterial activity