Triterpenes and saponins from Rudgea viburnioides

被引:21
作者
Claudia, M
Young, M
Araújo, AR
da Silva, CA
Lopes, MN
Trevisan, LNV
Bolzani, VDS
机构
[1] Univ Estadual Paulista, Inst Quim, Araraquara, SP, Brazil
[2] Inst Bot, Secao fisiol & Bioquim Plantas, BR-01061970 Sao Paulo, Brazil
来源
JOURNAL OF NATURAL PRODUCTS | 1998年 / 61卷 / 07期
关键词
D O I
10.1021/np9704617
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
A novel triterpene, viburgenin (1), has been isolated from an extract of the ripe fruit rinds of Rudgea viburnioides, together with the known saponins, arjunglucoside I and trachelosperosides B-1 and E-1, and the triterpenes trachelosperogenin B (2) and arjungenin. Compound 2 was previously obtained as a product from enzymatic hydrolysis, and it is reported for the first time as a natural product. The structure of compound 1 was determined as 2 alpha,3 beta,19 alpha,23,24-pentahydroxyurs-12-ene by extensive use of 1D and 2D NMR spectroscopic methods. Compound 1 exhibited moderate antifungal activity against Cladosporium cladosporioides.
引用
收藏
页码:936 / 938
页数:3
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