高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (7): 1282.doi: 10.7503/cjcu20160315

• 有机化学 • 上一篇    下一篇

海洋来源真菌Penicillim grisefulvum中桔霉素类化合物的分离及抗菌活性

高彤, 蔡思源, 许兰兰, 曹飞(), 朱华结()   

  1. 药物化学与分子诊断教育部重点实验室, 河北省药物质量分析控制重点实验室, 河北大学药学院, 保定 071002
  • 收稿日期:2016-05-06 出版日期:2016-07-10 发布日期:2016-06-27
  • 基金资助:
    保定市科技支撑项目(批准号: 15ZN020)、 河北省教育厅资助科研项目(批准号: QN2016177)和河北大学人才引进项目资助

Citrinin Derivatives from Marine-derived Fungus Penicillim Grisefulvum and Antibacterial Activity

GAO Tong, CAI Siyuan, XU Lanlan, CAO Fei*(), ZHU Huajie*()   

  1. Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
  • Received:2016-05-06 Online:2016-07-10 Published:2016-06-27
  • Contact: CAO Fei,ZHU Huajie E-mail:caofei542927001@163.com;zhuhuajie@hotmail.com
  • Supported by:
    † Supported by the Science and Technology Support Project of Baoding, China(No.15ZN020), the Scientific Rsearch Foundation of Hebei Educational Committee, China(No;QN2016177) and the Financial Support from the Hebei University, China

摘要:

以海洋来源青霉真菌Penicillim grisefulvum为研究对象, 采用硅胶、 C18柱和Sephadex LH-20凝胶柱层析等手段, 从中分离获得3个桔霉素类化合物: 7-methyl-penicitrinone A(1), citrinin(2)和penicitrinone A(3), 其中化合物1为新化合物. 通过一维核磁共振谱(1D NMR)、 二维核磁共振谱(2D NMR)和高分辨质谱(HR-ESI-MS)对化合物1的平面结构和相对构型进行确定, 并运用电子圆二色光谱(ECD)和量子化学计算方法确定了其绝对构型. 抗菌活性测试结果表明, 化合物1对副溶血性弧菌(Vibrio parahemolyticus)表现出了较强的抑制活性(MIC=0.8 μmol/L), 高于阳性对照药物环丙沙星的活性(MIC=1.3 μmol/L).

关键词: 海洋真菌, Penicillim grisefulvum, 桔霉素衍生物, 抗菌活性

Abstract:

The marine fungus Penicillim grisefulvum was cultivated with 43 d at 28 ℃, bioassay-guide fractionation of the marine fungus Penicillim grisefulvum led to the isolation of three citrinin derivatives(1—3), which were separated by silica gel column chromatography, C18 column chromatography, Sephadex LH-20, and semi-preparative HPLC. Based on the HR-ESI-MS, 1D and 2D NMR, compounds 1—3 were assigned as 7-methyl-penicitrinone A(1), citrinin(2) and penicitrinone A(3), respectively. The absolute configuration of compound 1 was determined by comparision of experimental and calculated electronic cicular dichroism(ECD) data. Compound 1 displayed strong antibacterial activity against Vibrio parahemolyticus(MIC=0.8 μmol/L), which was stronger than the positive control of ciprofloxacin(MIC=1.3 μmol/L).

Key words: Marine fungus, Penicillim grisefulvum, Citrinin derivative, Antibacterial activity

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