Megastigmane glycosides and an acylated triterpenoid from Eriobotrya japonica

被引：48

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.

引用

页码：737 / 740

页数：4

共 12 条

[1] CONSTITUENTS OF ERIOBOTRYA-JAPONICA - A STUDY OF THEIR ANTIVIRAL PROPERTIES [J].