Monoterpene glycosides and triterpene acids from Eriobotrya deflexa

Citation
Th. Lee et al., Monoterpene glycosides and triterpene acids from Eriobotrya deflexa, J NAT PROD, 64(7), 2001, pp. 865-869
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Agricultural Chemistry","Pharmacology & Toxicology
Journal title
JOURNAL OF NATURAL PRODUCTS
ISSN journal
0163-3864 → ACNP
Volume
64
Issue
7
Year of publication
2001
Pages
865 - 869
Database
ISI
SICI code
0163-3864(200107)64:7<865:MGATAF>2.0.ZU;2-X
Abstract
A phytochemical study on a methanolic extract of leaves of Eriobotrya defle xa led to the isolation and characterization of nine terpenoid compounds. F our of these are new chemical entities, including two monoterpene glycoside s, (3S)-O-alpha -L-rhamnopyranosyl-(1-->3)-[4-O-(E)-coumaroyl]-alpha -L-rha mnopyranosyl(1-->6)-beta -D-glucopyranosyl-linalool (1) and (3S)-O-alpha -L -rhamnopyranosyl-(1-->3)-[4-O-(Z)-coumaroyl]-alpha -L-rhamnopyranosyl-(1--> 6)-beta -D-glucopyranosyl-linalool (2), and two triterpene acids, 1 beta ,2 alpha ,19 alpha -trihydroxy-3-oxo-12-ursen-28-oic acid (3) and 2 alpha ,3 alpha ,19 alpha -trihydroxy-12-oleanen-28-oic acid (4). Their structures we re elucidated on the basis of spectroscopic analysis. The activities of the se isolates in an in vitro antiproliferation test were also determined.