| Literature DB >> 11421734 |
H Ito1, E Kobayashi, S H Li, T Hatano, D Sugita, N Kubo, S Shimura, Y Itoh, T Yoshida.
Abstract
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.Entities:
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Year: 2001 PMID： 11421734 DOI： 10.1021/np010004x
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050