有机化学 ›› 2024, Vol. 44 ›› Issue (2): 613-621.DOI: 10.6023/cjoc202307027 上一篇    下一篇

研究论文

2β-Acetoxyferruginol去醋酸基骨架衍生物抑制α-葡萄糖苷酶活性研究

吴思敏a, 唐嘉欣b, 周于佳c, 徐学涛a,*(), 张昊星b,*(), 王少华c,*()   

  1. a 五邑大学生物科技与大健康学院 广东江门 529020
    b 深圳大学生命与海洋科学学院 广东深圳 518060
    c 兰州大学药学院 兰州 730000
  • 收稿日期:2023-07-31 修回日期:2023-10-10 发布日期:2023-10-23
  • 作者简介:
    共同第一作者
  • 基金资助:
    广东省教育厅基金(2021KCXTD044); 广东省教育厅基金(2021KTSCX135)

α-Glucosidase Inhibition Research of Derivatives Based on 2β-Acetoxyferruginol Scaffold Excluding Acetic Acid Group

Simin Wua, Jiaxin Tangb, Yujia Zhouc, Xuetao Xua(), Haoxing Zhangb(), Shaohua Wangc()   

  1. a School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020
    b College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong 518060
    c School of Pharmacy, Lanzhou University, Lanzhou 730000
  • Received:2023-07-31 Revised:2023-10-10 Published:2023-10-23
  • Contact: E-mail: wyuchemxxt@126.com; zhang.haoxing@szu.edu.cn; wangshh@lzu.edu.cn
  • About author:
    These authors contributed equally to this work.
  • Supported by:
    Funds of Department of Education of Guangdong Province(2021KCXTD044); Funds of Department of Education of Guangdong Province(2021KTSCX135)

合成了系列2β-acetoxyferruginol去醋酸基骨架衍生物(1~24), 并测定了其α-葡萄糖苷酶抑制活性. 结果表明: 化合物1~24均有较好的α-葡萄糖苷酶抑制作用. 其中(3R,4aS,10aS)-6-羟基-1,1,4-三甲基-1,2,3,4,4a,9,10,10-八氢邻蒽- 3-基-4-(三氟甲基)苯甲酸酯(15)抑制α-葡萄糖苷酶活性最强[IC50=(23.91±2.34) μmol/L], 是阿卡波糖抑制活性的23.6倍. 构效关系分析表明三氟甲基的引入更有利于提高化合物的活性. 动力学结果显示化合物15为可逆非竞争性的α-葡萄糖苷酶抑制剂. 3D荧光结果表明化合物15α-葡萄糖苷酶的结合可改变α-葡萄糖苷酶的构象. 分子对接结果显示化合物15α-葡萄糖苷酶Asp68, Arg312, Tyr313形成了氢键, 与Phe177和Phe300形成疏水作用.

关键词: 2β-acetoxyferruginol, α-葡萄糖苷酶, 3D荧光, 分子对接

In this study, a series derivatives based on 2β-acetoxyferruginol scaffold excluding acetic acid group (1~24) were synthesized and their inhibitory activities on α-glucosidase were determined. The results showed that all compounds 1~24 had good α-glucosidase inhibitory activities. Among them, (3R,4aS,10aS)-6-hydroxy-1,1,4a-trimethyl-1,2,3,4,4a,9,10,10a-octahy- drophenanthren-3-yl 4-(trifluoromethyl)benzoate (15) had the strongest inhibitory activity [IC50=(23.91±2.34) μmol/L], about 23.6-fold more active than acarbose. The structure activity relationship analysis showed that the introduction of trifluoromethyl was more conducive to enhance its activity. The kinetic results showed that compound 15 was a reversible and non competitive α-glucosidase inhibitor. The 3D fluorescence results indicated that the binding of α-glucosidase with compound 15 could change the conformation of α-glucosidase. The molecular docking results showed that compound 15 made hydrogen bonds with Asp68, Arg312, and Tyr313, and formed hydrophobic interactions with Phe177 and Phe300.

Key words: 2β-acetoxyferruginol, α-glucosidase, 3D fluorescence, molecular docking