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cyclo {[(6-Amino-6-deoxy-2,3:4,5-di-O-isopropylidene-D-galactonic acid)-(D-Phe)]2}

Bream, Richard, Watkin, David J., Soengas, Raquel, Edwards, Alison A., Hunter, Stuart J., Tranter, George E., Fleet, George W.J. (2006) cyclo {[(6-Amino-6-deoxy-2,3:4,5-di-O-isopropylidene-D-galactonic acid)-(D-Phe)]2}. Acta Crystallographica, 62 . 01851-01853. ISSN 1600-5368. (doi:10.1107/S1600536806012487) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided)

Abstract

Determination of the crystal structure of the title compound [systematic name: 9,25-dibenzyl-4,4,15,15,20,20,31,31-octamethyl-3,5,14,16,19,21,30,32-octaoxa-8,11,24,27-tetraazapentacyclo[27.3.0.0(2,6).0(13,17).0(18,22)]dotriacontane-7,10,23,26-tetrone], C42H56N4O12, a cyclic tetramer, established the relative stereochemistry of its ten stereogenic C atoms; an interesting saddle-like conformation is adopted. There are two molecules in the asymmetric unit. With the exception of the phenyl and isopropylidene groups, the molecules are related by a non-crystallographic twofold rotation axis. There are varying degrees of disorder in the isopropylidene groups.

Item Type: Article
DOI/Identification number: 10.1107/S1600536806012487
Subjects: Q Science
Divisions: Faculties > Sciences > Medway School of Pharmacy
Depositing User: Alison Edwards
Date Deposited: 02 Sep 2008 00:11 UTC
Last Modified: 28 May 2019 13:40 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/4894 (The current URI for this page, for reference purposes)
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