Megastigmane glycosides and an acylated triterpenoid from Eriobotrya japonica

被引：44
作者：
Ito, H
Kobayashi, E
Li, SH
Hatano, T
Sugita, D
Kubo, N
Shimura, S
Itoh, Y
Yoshida, T [1 ]
机构：
[1] Okayama Univ, Fac Pharmaceut Sci, Okayama 7008530, Japan
[2] Lotte Co Ltd, Cent Res Inst, Urawa, Saitama 3360027, Japan
来源：
JOURNAL OF NATURAL PRODUCTS | 2001年 / 64卷 / 06期
关键词：
D O I：
10.1021/np010004x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Two new megastigmane glycosides, eriojaposides A (1) and B (2), and a new acylated triterpenoid (3) were isolated along with nine known compounds from a leaf extract of Eriobotrya japonica. The structures of 1-3 were characterized as (6R,9R)-3-oxo-alpha -ionyl-9-O-beta -xylopyranosyl-(1 " -->6 ')-beta -glucopyranoside (6R,9R)-3-oxo-alpha -ionyl-9-O-alpha -rhamnopyranosyl-(1 " -->6 ')-beta -glucopyranoside, and 3 alpha -trans-feruloyloxy-2 alpha -hydroxyurs-12-en-28-oic acid, respectively, on the basis of spectral and chemical evidence.
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页码：737 / 740
页数：4
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