Two new nor-triterpene glycosides from Peruvian "Una de Gato" (Uncaria tomentosa)

被引:16
作者
Kitajima, M
Hashimoto, K
Yokoya, M
Takayama, H
Sandova, M
Aimi, N
机构
[1] Chiba Univ, Grad Sch Pharmaceut Sci, Inage Ku, Chiba 2638522, Japan
[2] Univ Nacl Agr Selva, Ctr Res Amazonian Nat Prod, Tingo Maria, Peru
来源
JOURNAL OF NATURAL PRODUCTS | 2003年 / 66卷 / 02期
关键词
D O I
10.1021/np0203741
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Two new 27-nor-triterpene glycosides, tomentosides A (1) and B (2), were isolated from Peruvian "Una de Gato" (cat's claw, plant of origin: Uncaria tomentosa), a traditional herbal medicine in Peru. Their structures were determined by spectroscopic analysis and chemical interconversions. This is the first report of naturally occurring pyroquinovic acid glycosides.
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页码:320 / 323
页数:4
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