有机化学 ›› 2020, Vol. 40 ›› Issue (4): 1038-1042.DOI: 10.6023/cjoc201908033 上一篇    下一篇

研究简报

疣孢菌NS0172产生的邻二烷基取代芳香酸

张坤a, 谢向前b, 史海霞a, 沈月毛a,b, 王浩鑫a   

  1. a 山东大学微生物技术研究院 微生物技术国家重点实验室 青岛 266237;
    b 山东大学药学院 天然产物化学生物学教育部重点实验室 济南 250012
  • 收稿日期:2019-08-26 修回日期:2019-11-08 发布日期:2020-05-06
  • 通讯作者: 沈月毛, 王浩鑫 E-mail:yshen@sdu.edu.cn;wanghaoxin@sdu.edu.cn
  • 基金资助:
    国家自然科学基金(Nos.31570039,81530091)和教育部长江学者与创新团队发展计划(No.IRT_17R68)资助项目.

ortho-Dialkyl-Substituted Aromatic Acids from Verrucosispora sp. NS0172

Zhang Kuna, Xie Xiangqianb, Shi Haixiaa, Shen Yuemaoa,b, Wang Haoxina   

  1. a State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237;
    b Key Laboratory of Chemical Biology(Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012
  • Received:2019-08-26 Revised:2019-11-08 Published:2020-05-06
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Nos. 31570039, 81530091), and the Program for Changjiang Scholars and Innovative Research Team in University (No. IRT_17R68).

从疣孢菌NS0172的发酵产物中分离得到2个新的邻二烷基取代芳香酸类化合物12.通过一维和二维NMR数据解析及高分辨质谱分析确定了化合物12的化学结构.利用噻唑蓝(MTT)比色法测定了化合物12的细胞毒活性,结果显示化合物1对人肝癌细胞SMMC-7721具有一定的细胞毒性(IC50 7.74 μmol·L-1).利用滤纸片法测定了化合物12的抗细菌和抗真菌活性,结果显示两者在40 μg/disc条件下均无抗菌活性.这是首次报道疣孢菌代谢产生邻二烷基取代芳香酸类化合物,为后续开展相关生物合成机制研究奠定了基础.

关键词: 疣孢菌, 放线菌, 天然产物, 邻二烷基取代芳香酸

Two new ortho-dialkyl-substituted aromatic acids 1 and 2 were isolated from Verrucosispora sp. NS0172. The chemical structures of 1 and 2 were determined by spectroscopic methods including 1D- and 2D-NMR and HR-ESIMS experiments. The cytotoxicity of compounds 1 and 2 was evaluated by methyl thiazolyl tetrazolium (MTT) assay, and compound 1 showed potent antiproliferative activity against human hepatocellular carcinoma SMMC-7721 (IC50 7.74 μmol·L-1). Compounds 1 and 2 were tested for the antimicrobial and antifungal activities by filter paper disc diffusion assay, and both of them showed no evident activities at a dose of 40 μg/disc. This study is the first report of discovering of ortho-dialkyl-substi-tuted aromatic acids from Verrucosispora, which sets the foundation for future biosynthetic study of this class of natural products in Verrucosispora.

Key words: verrucosispora, actinomycetes, natural product, ortho-dialkyl-substituted aromatic acids