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

Bream, Richard and Watkin, David J. and Soengas, Raquel and Edwards, Alison A. and Hunter, Stuart J. and Tranter, George E. and 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. (Access to this publication is restricted)

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http://dx.doi.org/10.1107/S1600536806012487

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
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > Medway School of Pharmacy
Depositing User: Alison Edwards
Date Deposited: 02 Sep 2008 00:11
Last Modified: 22 Apr 2014 08:26
Resource URI: http://kar.kent.ac.uk/id/eprint/4894 (The current URI for this page, for reference purposes)
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