天然产物研究与开发 ›› 2023, Vol. 35 ›› Issue (6): 981-985.doi: 10.16333/j.1001-6880.2023.6.007

• 研究简报 • 上一篇    下一篇

矮生胡枝子的化学成分研究

杜锟1,2*,薛贵民1*,支燕乐1,赵珍珠1,司盈盈1,梁振豪1,崔传豪1,王彦志1   

  1. 1河南中医药大学药学院,郑州 450046;2河南中医药大学第一附属医院,郑州 450000
  • 出版日期:2023-06-28 发布日期:2023-06-28
  • 基金资助:
    河南中医药大学博士科研基金(BSJJ2018-19)

Chemical constituents of Lespedeza forrestii

DU Kun1,2*,XUE Gui-min1*,ZHI Yan-le1,ZHAO Zhen-zhu1,SI Ying-ying1,LIANG Zhen-hao1,CUI Chuan-hao1,WANG Yan-zhi1   

  1. 1School of Pharmacy,Henan University of Chinese Medicine,Zhengzhou 450046,China;2The First Affiliated Hospital of Henan University of Chinese Medicine,Zhengzhou 450000,China
  • Online:2023-06-28 Published:2023-06-28

摘要:

研究植物矮生胡枝子(Lespedeza forrestii)全株的化学成分。采用Sephadex LH-20和反相制备型HPLC等方法分离与纯化,运用NMR、MS等波谱技术鉴定化合物结构。从矮生胡枝子的甲醇提取物中分离得到10个化合物,分别鉴定为山柰酚-3-O-α-L-鼠李糖苷(1)、槲皮素-3-O-α-L-鼠李糖苷(2)、山柰酚-3-O-芸香糖苷(3)、槲皮素-3-O-芸香糖苷(4)、山柰酚-3-O-洋槐糖苷(5)、牡荆素(6)、荭草素(7)、维采宁-2(8)、染料木素(9)和dalbergioidin(10),均为首次从矮生胡枝子中分离得到。对化合物1~10在小鼠巨噬细胞RAW 264.7细胞株上进行抗炎活性的筛选显示,在20 μmol/L浓度下化合物8和10分别对IL-6和IL-1β的mRNA表达水平具有抑制活性,显示一定的抗炎作用。

关键词: 矮生胡枝子, 抗炎活性, 黄酮醇氧苷, 黄酮碳苷

Abstract:

To study the chemical constituents of the whole plant of Lespedeza forrestii.The compounds were isolated and purified by various modern chromatographic techniques,including Sephadex LH-20 column chromatography and preparative HPLC,and their structures were characterized predominantly on the basis of NMR and MS spectroscopic data.Ten compounds were isolated from the MeOH extract of L. forrestii.The isolated compounds were identified as kaempferol-3-O-α-L-rhamnoside(1),quercetin-3-O-α-L-rhamnoside (2),kaempferol-3-O-rutinoside (3),quercetin-3-O-rutinoside (4),kaempferol-3-O-robinobioside (5),vitexin (6),orientin (7),vicenin-2 (8),genistein (9),and dalbergioidin (10).Compounds 1-10 were isolated from  L. forrestii for the first time.Compounds 1-10 were screened for anti-inflammatory activity in LPS-induced RAW264.7 cells.At a concentration of 20 μmol/L,compounds 8 and 10 showed inhibitory effect on the mRNA expression of IL-6 and IL-1β,respectively.

Key words: Lespedeza forrestii, anti-inflammatory activity, flavonol O-glycosides, flavone C-glycosides

中图分类号:  R284.1