Synlett 2002(6): 0967-0971
DOI: 10.1055/s-2002-31913
LETTER
© Georg Thieme Verlag Stuttgart · New York

Thiophosphorylation of Biologically Relevant Alcohols by the Oxathiaphospholane Approach

Magdalena Olesiak, Danuta Krajewska, Ewa Wasilewska, Dariusz KorczyŇski, Janina Baraniak, Andrzej Okruszek*, Wojciech J. Stec
Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Ł Ûdü, Poland
e-Mail: okruszek@bio.cbmm.lodz.pl;
Further Information

Publication History

Received 22 February 2002
Publication Date:
07 February 2007 (online)

Abstract

2-Alkoxy-2-thiono-1,3,2-oxathiaphospholanes are readily transformed into phosphorothioate monoesters of the corresponding alcohols in a one-pot process, involving the reaction with 3-hydroxypropionitrile in the presence of DBU, followed by treatment with aqueous ammonia. In this way a series of nucleoside-3′-O- and 5′-O-phosphorothioates were prepared, as well as phosphorothioate derivatives of selected polyols.

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A linear gradient 0.05→0.5 M triethylammonium bicarbonate (TEAB) was used as eluent.

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RP HPLC purification of nucleoside 5′-O- or 3′-O-phosphorothioates was performed portionwise, on a semi-preparative ODS-Hypersil column (C18), with a linear gradient of 0 → 40% acetonitrile in 0.1 M TEAB as eluent (2%/min). Pure products were collected at retention times ranging from 8.3 to 11.1 min.

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Guga, P.; DomaÒski, K.; unpublished results.