有机化学    

研究简报

红树植物海漆中二萜类化合物及其抗神经炎症活性

李俊义a,†, 杨璐b,†, 陈明宾a, 饶勇a, 江仲平*,a, 黄玲*,a   

  1. a海南大学热带生物资源教育部重点实验室,海南大学药学院 海口 570228;
    b海南大学食品科学与工程学院 海口 570228
  • 收稿日期:2024-04-17 修回日期:2024-05-27
  • 基金资助:
    国家自然科学基金(No. 82204275和82160653 )、海南省自然科学基金(323MS014)资助项目.

Diterpenoids from Mangrove Plant Excoecaria agallocha L. and Their Anti-neuroinflammatory Activities

Li, Junyia,†, Yang, Lub,†, Chen, Mingbina, Rao, Yonga, Jiang, Zhongping*,a, Huang, Ling*,a   

  1. aKey Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228;
    bSchool of Food Science and Engineering, Hainan University, Haikou, 570228
  • Received:2024-04-17 Revised:2024-05-27
  • Contact: *E-mail: zpjiang@hainanu.edu.cn; Linghuang@hainanu.edu.cn
  • About author:† These authors contributed equally to this work.
  • Supported by:
    National Natural Science Foundation of China (No. 82204275 and 82160653), the Hainan Provincial Natural Science Foundation of China (323MS014)

本研究采用正相、反相硅胶柱层析和半制备高效液相色谱等分离方法对海南红树植物海漆 (Excoecaria agallocha L.) 茎和枝条的化学成分进行研究,从中分离得到一个新的3,4位开环对映-贝壳杉烷型二萜agallochanin acid A (1) 和一个新的降4个碳的对映-半日花烷型二萜agallochanin acid B (2), 以及4个已知的二萜化合物 (3-6)。通过高分辨质谱、一维、二维核磁共振波谱以及ECD计算的方法确定了这些二萜类化合物的结构。测试了所有化合物对LPS诱导BV-2小胶质细胞中NO释放的抑制作用,化合物3和5具有显著的抑制NO释放作用,其IC50值分别为14.32 ± 1.99和4.24 ± 0.37 μM。

关键词: 海漆, 红树植物, 贝壳衫烷二萜, 半日花烷二萜, 抗神经炎症

In this paper, normal-phase and reversed-phase silica gel column chromatography and semi-preparative high performance liquid chromatography were applied to study the chemcal constituents of the stems and twigs of the Hainan mangrove plant, Excoecaria agallocha L.. A new 3,4-seco-ent-kaurane diterpenoid, named agallochanin acid A (1), and a rare ent-tetranorlabdane diterpenoid, named agallochanin acid B (2), along with four known diterpenoids (3-6) were isolated. Their structures including absolute configurations were characterized via HR-ESIMS, extensive 1D and 2D NMR investigations and calculated and experimental electronic circular dichroism (ECD) data. All isolates were tested for their inhibitory effects on NO production in LPS-activated BV-2 cells. Compounds 3 and 5 exhibited considerable anti-neuroinflammatory activities, with IC50 values of 14.32 ± 1.99 and 4.24 ± 0.37 μM.

Key words: Excoecaria agallocha L., mangrove plant, kaurane diterpenoid, labdane diterpenoid, anti-neuroimflamation