Synthesis 2006(14): 2343-2348  
DOI: 10.1055/s-2006-942438
PAPER
© Georg Thieme Verlag Stuttgart · New York

Synthesis of a Thymidine-Derived Acylsilane: A New Synthetic Intermediate towards Thymidine Analogues

Anita Wegerta, Jean-Bernard Behrb, Norbert Hoffmannb, Ralf Miethchena, Charles Portellab, Richard Plantier-Royon*b
a Institut für Chemie, Organische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
b Laboratoire ‘Réactions Sélectives et Applications’, Associé au CNRS (UMR 6519), Université de Reims Champagne-Ardenne, Faculté des Sciences, B.P. 1039, 51687 Reims Cedex 2, France
Fax: +33(3)26913166; e-Mail: richard.plantier-royon@univ-reims.fr;
Further Information

Publication History

Received 10 March 2006
Publication Date:
26 June 2006 (online)

Abstract

An efficient procedure was established to synthesize a thymidine analogue bearing an acylsilane function at the 5′-position, starting from thymidine in four steps and 58% overall yield. This compound proved to be a valuable intermediate for the synthesis of various nucleoside analogues with a one-carbon chain elongation at the 5′-position and a useful compound towards the construction of modified oligonucleotides.

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Bercier, A.; Plantier-Royon, R.; Portella, C. unpublished results.

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We reacted compound 3 (1 equiv) with 2-lithio-1,3-dithiane (4 equiv) for 6 h at -30 °C in THF. A major compound was isolated and was identified as a dimeric analogue of the expected 5′-dithianyl-thymidine derivative.