Document Detail


Synthesis of a Mycobacterium tuberculosis Tetra-acylated Sulfolipid Analogue and Characterization of the Chiral Acyl Chains Using Anisotropic NAD 2D-NMR Spectroscopy.
MedLine Citation:
PMID:  23845048     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Tetra-O-acylated sulfolipids are metabolites found in the cell wall of Mycobacterium tuberculosis, the causative agent of tuberculosis. Their role in pathogenesis remains, however, undefined. Here we describe a novel access to model tetra-O-acylated trehalose sulfate derivatives having simple acyl chains. The trehalose core was regioselectively protected using a tandem procedure with catalytic iron(III) chloride hexahydrate and further desymmetrized. Model chiral fatty acids, prepared by a zinc-mediated cross-coupling, were incorporated into the trehalose core. The enantiomeric excess of the chiral fatty acids has been measured by natural abundance deuterium (NAD) 2D-NMR spectroscopy in a polypeptide based chiral liquid crystal. The synthetic approach established for the model compounds can easily be developed for the preparation of other analogues and natural sulfolipids.
Authors:
Aurélie Lemétais; Yann Bourdreux; Philippe Lesot; Jonathan Farjon; Jean-Marie Beau
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-7-25
Journal Detail:
Title:  The Journal of organic chemistry     Volume:  -     ISSN:  1520-6904     ISO Abbreviation:  J. Org. Chem.     Publication Date:  2013 Jul 
Date Detail:
Created Date:  2013-7-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985193R     Medline TA:  J Org Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Université Paris-Sud , Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182, Laboratoire de Synthèse de Biomolécules, F-91405 Orsay, France.
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