a Record control number 000261289600016

a ISSN 0031-9422

a Original cataloging agency NEU GrandLibrary

a Language code of text/sound track or separate title eng

a Classification number QU4.3

b Item number .C93 2008

a Personal name Çalış, İhsan,

h Medium Electronic Document

a Title Cycloartane glycosides from Astragalus campylosema Boiss. ssp campylosema

c Statement of responsibility, etc Ihsan Calis, Ali A. Donmez, Angela Perrone, Cosimo Pizza, Sonia Piacente.

c Date of publication, distribution, etc 2008.

b Name of publisher, distributor, etc Pergamon-Elsevier Science Ltd,

a Place of publication, distribution, etc Oxford :

a Summary, etc Four cycloartane glycosides, 3-O-[alpha-L-arabinopyranosyl-(1 -> 2)-beta-D-xylopyranosyl]-3 beta,6 alpha,16 beta,23 alpha, 25-pentahydroxy-20(R),24(S)-epoxycycloartane (1), 3-O-[alpha-L-arabinopyranosyl-(1 -> 2)-beta-D-xylopyranosyl]-16-O-hydroxyacetoxy-23-O-acetoxy-3 beta,6 alpha,25-trihydroxy-20(R),24(S)-epoxycycloartane (2), 3-O[alpha-L-arabinopyranosyl-(1 -> 2)-beta-D-xylopyranosyl]-3 beta,6 alpha,23 alpha,25-tetrahydroxy-20(R),24(R)-16 beta,24;20, 24-diepoxycycloartane (3), 3-O-[alpha-L-arabinopyranosyl-(1 -> 2)-beta-D-xylopyranosyl]-25-O-beta-D-glucopyranosyl-3 beta,6 alpha,16 beta,25-tetrahydroxy-20(R),24(S)-epoxycycloartane (4), along with three known cycloartane glycosides were isolated from the MeOH extract of the roots of Astragalus campylosema ssp. campylosema. Their structures were established by the extensive use of 1D- and 2D-NMR experiments along with ESIMS and HRMS analysis. The occurrence of the hydroxyl function at position 23 (1-2) and of the ketalic function at C-24 (3) are very unusual findings in the cycloartane class. (C) 2008 Elsevier Ltd. All rights reserved.

a Topical term or geographic name as entry element Biochemistry

a Topical term or geographic name as entry element Near East University Article

a Topical term or geographic name as entry element Yakın Doğu Üniversitesi Makale

a Topical term or geographic name as entry element Plant Sciences

a Topical term or geographic name as entry element Astragalus campylosema ssp campylosema

a Topical term or geographic name as entry element Leguminosae

g Relationship information OCT 2008, Vol 69 Issue 14, p2634-2638

t Title Phytochemistry

x International Standard Serial Number 00319422

u Uniform Resource Identifier http://library.neu.edu.tr:2048/login?url=http://dx.doi.org/10.1016/j.phytochem.2008.08.002