An alternative strategy for the synthesis of 3′-azido-2′,3′-dideoxy-4′-thionucleosides starting from d-xylose
作者:Bougrine Tber、Nour-Eddine Fahmi、Gino Ronco、Pierre Villa、David F. Ewing、Grahame Mackenzie
DOI:10.1016/0008-6215(94)00296-r
日期:1995.2
Abstract Methyl 5-O- acetyl-3-azido-2,3-dideoxy-4-thio -α,β- d -erythro- pentofuranoside and 1,5-O- diacetyl-3-azido-2,3-dideoxy-4-thio -α,β- d -erythro- pentofuranose were prepared in twelve and thirteen steps, respectively, by an efficient route starting from d -xylose. Both compounds were easily converted into an anomeric mixture of pyrimidine nucleosides by reaction with the 2,4-bi(trimethylsilyloxy)