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Plant Diversity ›› 1995, Vol. 17 ›› Issue (02): 1-3.

• 研究论文 •    

钩藤的三萜成分

杨成金 张峻 吴大刚   

  1. 中国科学院昆明植物研究所植物化学开放研究实研室
  • 出版日期:1995-04-25 发布日期:1995-04-25

TRITERPENOIDS FROM UNCARIA RHYNCHOPHYLLA

YANG Cheng-Jing ZHANG Jim WU Da-Gang   

  1. Laboratory of Phytochemistry, Kunming Institute of Botany, Chinese Academy of Sciences
  • Online:1995-04-25 Published:1995-04-25

摘要: 从钩藤(Uncaria rhynchophylla Miq.Jacks)枝叶的乙醇提取物中分离得到5个三萜成分。经光谱鉴定,I为已知化合物:3β,6β, 19α-trihydroxyurs-12-en-28-oic-acid;II为新化合物:3β,6β- dihydroxyurs-12,18(19)-dien-28-oic acid,命名为钩藤甙元 A;III为新化合物:3β- hydroxyurs-5(6),12,18(19)-trien-28-oic acid,命名为钩藤甙元 B;IV为常春藤甙元;V为新化合物:3β,6β,3-trihydroxyolean-12-en-28-oic-acid,合名为钩藤甙元C。5个化合物均是从钩藤中首次得到。

关键词: 茜草科, 钩藤属, 钩藤甙元

Abstract: Three new triterpenoids named uncargenin A, uncargenin B and uncargenin C, which had structures of 3β, 6β-dihydroxyurs-12, 18(19)-dien-28-oic acid, 3j8-hydroxyurs-5(6), 12, 18(19)-trien-28-oic acid and 3β, 6β, 23-trihydroxyolean-12-en-28-oic acid respectively, and two known triterpenoids were isolated from the ethanol extract of Uncaria rhychophyllo Miq. Jacks by means of column chromatography. Their structures were identified on the basis of spec-tral methods.

Key words: Rubiaceae