Synthesis 2010(3): 498-504  
DOI: 10.1055/s-0029-1218591
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Stereoselective Synthesis of Fluorinated and Nonfluorinated Triazolo Analogues of Ceramides

Katarzyna Koroniak, Günter Haufe*
Organisch-Chemisches Institut and International NRW Graduate School of Chemistry, Correnstraße 40, 48149 Münster, Germany
Fax: +49(251)8339772; e-Mail: haufe@uni-muenster.de; e-Mail: koroniak@uni-muenster.de;
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Publikationsverlauf

Received 21 July 2009
Publikationsdatum:
07. Dezember 2009 (online)

Abstract

A series of diastereomeric fluorinated and nonfluorinated triazolo analogues of naturally occurring sphingolipids like dihydroceramide suitable for physicochemical and medicinal chemistry applications were prepared enantioselectively. Key steps of the synthetic sequence are asymmetric Sharpless dihydroxylation of α,β-unsaturated esters to diols, regioselective ring opening of derived cyclic sulfates by azide, 1,3-dipolar cycloaddition with alkynes, and reduction of the ester groups.