Process for the preparation of 2'-halo-beta-L-arabinofuranosyl nucleosides
申请人:——
公开号:US20030060622A1
公开(公告)日:2003-03-27
The present invention is directed to the process for the preparation of 2′-deoxy-2′-halo-&bgr;-L-arabinofuranosyl nucleosides, and in particular, 2′-deoxy-2′-fluoro-&bgr;-L-arabinofuranosyl thymine (L-FMAU), from L-arabinose, which is commercially available and less expensive than L-ribose or L-xylose, in ten steps. All of the reagents and starting materials are inexpensive and no special equipment is required to carry out the reactions.
SYNTHESIS AND BIOLOGICAL ACTIVITY OF 4′-<i>C</i>-HYDROXYMETHYL-2′-FLUORO- D-ARABINOFURANOSYLPURINE NUCLEOSIDES
作者:Anita T. Shortnacy-Fowler、Kamal N. Tiwari、John A. Montgomery、John A. Secrist
DOI:10.1081/ncn-100105249
日期:2001.7.31
nosylpurine nucleosides was prepared and evaluated for cytotoxicity. The details of a convenient synthesis of the carbohydrate precursor 4-C-hydroxymethyl-3,5-di-O-benzoyl-2-fluoro-alpha-D-arabinofuranosyl bromide (13) are presented. Proof of the structure and configuration at all chiral centers of the sugars and the nucleosides were obtained by proton NMR. All five target nucleosides were evaluated
SYNTHESIS AND BIOLOGICAL ACTIVITY OF 4′-C-HYDROXYMETHYL-2′-FLUORO-D-ARABINOFURANOSYLPURINE NUCLEOSIDES
作者:A. T. Shortnacy-Fowler、K. N. Tiwari、J. A. Montgomery、J. A. Secrist
DOI:10.1081/ncn-100002421
日期:2001.3.31
A series of 4'-C-hydroxymethyl-2'-fluoro-D-arabinofuranosylpurine nucleosides was prepared and evaluated for cytotoxicity in human tumor cell lines. A convenient synthesis of the carbohydrate precursor 4-C-hydroxymethyl-3,5-di-O-benzoyl-2-fluoro-alpha -D-arabinofuranosyl bromide (13) was developed. Coupling of 13 with the sodium salt of 2,6-dichloropurine led to five target purine nucleosides.