Synthesis of 3,6-anhydro sugars from cyclic sulfites and sulfates and their applications in the preparation of bicyclonucleoside analogues of ddC and ddA
作者:M.Pineda Molas、M.Isabel Matheu、Sergio Castillón、Joaquín Isac-García、Fernando Hernández-Mateo、Francisco G. Calvo-Flores、Francisco Santoyo-González
DOI:10.1016/s0040-4020(99)00911-4
日期:1999.12
Cyclicsulfates 21–23 and sulfite 27 derived from glucofuranose lead to the 3,6-anhydrosugar 28 in excellent yields when treated with sodium sulfite or in basic media. When treated with sodium sulfite, the 3-deoxy derivative 24 fails to give the intramolecular cyclization which leads to the anhydrosugars. Instead it gives the disulfonate derivative 26. 28 was used as starting material to prepare bicyclonucleosides