Synthesis and Conformational Analysis of 1,5-Anhydro-2,4-dideoxy-D-mannitol Nucleosides
摘要:
1,5-Anhydro-4,6-O-benzylidene-D-glucitol was used as starting material for the synthesis of 1,5-anhydro-2,4-dideoxy-D-mannitol nucleosides with an adenine and uracil base moiety. The compound with a purine base was obtained by direct nucleophilic substitution of a triflate. The pyrimidine nucleoside could be obtained by epoxide opening followed by inversion of configuration at the 3'-position. Both nucleosides adopt a C1 conformation with an axial base moiety.
Synthesis and Conformational Analysis of 1,5-Anhydro-2,4-dideoxy-D-mannitol Nucleosides
摘要:
1,5-Anhydro-4,6-O-benzylidene-D-glucitol was used as starting material for the synthesis of 1,5-anhydro-2,4-dideoxy-D-mannitol nucleosides with an adenine and uracil base moiety. The compound with a purine base was obtained by direct nucleophilic substitution of a triflate. The pyrimidine nucleoside could be obtained by epoxide opening followed by inversion of configuration at the 3'-position. Both nucleosides adopt a C1 conformation with an axial base moiety.
A short and efficient synthesis of 1,5-anhydro-d-glucitol 6-phosphate
作者:Changyou Yuan、Rawle I. Hollingsworth
DOI:10.1016/j.tetlet.2011.07.082
日期:2011.10
of the hydroxyl groups as their allyl ether followed by reductive cleavage of the glycosidic linkage with triethylsilane formed the protected anhydroglucitol. No ring rearrangement or ring contraction was observed during the reduction step. Using the PdCl2–CuCl2–activated charcoal system, the allyl ether bond was cleaved with a low loading of the catalyst (0.0025 equiv per allylgroup). 1,5-Anhydro-d-glucitol