天然产物研究与开发 ›› 2024, Vol. 36 ›› Issue (1): 37-43.doi: 10.16333/j.1001-6880.2024.1.004

• 研究论文 • 上一篇    下一篇

地卷柏的化学成分及其α-葡萄糖苷酶抑制活性研究

姜红宇1,2,吕敬崑3,邵金华1,2,陈小明1,2,3*   

  1. 1湖南科技学院化学与生物工程学院;2湖南省银杏工程技术研究中心;3湖南恒伟药业股份有限公司,永州 425100
  • 出版日期:2024-01-23 发布日期:2024-01-23
  • 基金资助:
    湖南省自然科学基金(2020JJ9026)

Chemical constituents from Selaginella prostrata H.S.Kung and their α-glucosidase inhibitory activities

JIANG Hong-yu1,2,LYU Jing-kun3,SHAO Jin-hua1,2,CHEN Xiao-ming1,2,3*   

  1. 1School of Chemistry and Bioengineering,Hunan University of Science and Engineering;2Hunan Provincial Engineering Research Center for Ginkgo Folium,Hunan University of Science and Engineering;3Hunan Hengwei Pharmaceutical Co.,Ltd.,Yongzhou 425100,China
  • Online:2024-01-23 Published:2024-01-23

摘要: 研究地卷柏(Selaginella prostrata H.S.Kung)的化学成分及其α-葡萄糖苷酶抑制活性,综合运用硅胶、Sephadex LH-20和半制备HPLC等多种色谱分离技术,从地卷柏全草的95%乙醇提取物中分离得到10个化合物,通过现代波谱学方法鉴定其结构为seprostrataoid A(1)、(3S,5R,8S)-5,8-epoxy-6-megastigmadien -3,9-diol(2)、(-)-黑麦草内酯(3)、(3S,5R,6R,7E)-3,5,6-三羟基-7-巨豆烯-9-酮(4)、(7R,8S)-ceplignan(5)、(2R,3S)-二氢-2-(3′,5′-二甲氧基-4′-羟基苯基)-3-羟甲基-7-甲氧基-5-乙酰基苯骈呋喃(6)、5,5′-二甲氧基木香酚A(7)、穗花衫双黄酮(8)、异柳杉双黄酮(9)、扁柏双黄酮(10)。其中,化合物1为新的倍半萜类化合物,化合物2~10为首次从地卷柏中分离得到。α-葡萄糖苷酶抑制活性测试结果显示,化合物7~10具有较好的α-葡萄糖苷酶抑制活性,IC50值分别为72.14±2.67、42.68±1.54、61.26±4.32、55.43±2.17 μmol/L。

关键词: 地卷柏, 化学成分, 倍半萜, 双黄酮, α-葡萄糖苷酶

Abstract:

This paper aims to study the chemical constituents of Selaginella prostrata H.S.Kung and their α-glucosidase inhibitory activity. A new sesquiterpene,namely seprostrataoid A (1),together with nine known compounds,namely (3S,5R,8S)-5,8-epoxy-6-megastigmadien-3,9-diol (2),(-)-loliolide (3),(3S,5R,6R,7E)-3,5,6-trihydroxy-7-megastigmen-9-one (4),(7R,8S)-ceplignan (5),(2R,3S)-dihydro-2-(3′,5′-dimethoxy-4′-hydroxyphenyl)-7-methoxy-5-acetyl-benzofuran (6),5,5′-dimethoxylclemaphenol A (7),amentoflavone (8),isocryptomerin (9),hinokiflavone (10),were isolated and purified from the 95% ethanol extract of S. prostrata by comprehensive chromatography methods of silica gel column,Sephadex LH-20 gel column and semi-preparative HPLC. All compounds are obtained from  S. prostrata for the first time.In vitro activity results showed that compounds 7-10 had significant α-glucosidase inhibitory activity with IC50 values of 72.14±2.67,42.68±1.54,61.26±4.32 and 55.43±2.17 μmol/L,respectively.

Key words: Selaginella prostrata H.S.Kung, chemical constituents, sesquiterpene, biflavonoids, α-glucosidase

中图分类号:  R284.1