Starting from 2-C-methyl-ribonolactone, 1,2,3,5-letra-O-acetyl-2-C-methyl-4-thioribofuranose was synthesized and condensed with heterocyclic bases to afford 2'-C-methyl-4'-thioribonucleosides.
Nucleosides and Nucleotides. 232. Synthesis of 2′-<i>C</i>-Methyl-4′-thiocytidine: Unexpected Anomerization of the 2′-Keto-4′-thionucleoside Precursor
作者:Daisuke Kaga、Noriaki Minakawa、Akira Matsuda
DOI:10.1080/15257770500267204
日期:2005.9.1
The synthesis of 2′-C-methyl-4′-thiocytidine (16) is described. Since the 2′-keto-4′-thiocytidine derivative 2β unexpectedly isomerized to 2α and the methylation of 2β proceeded predominantly from the less hindered α-face to give 7, the desired product 16 was synthesized via the Pummererreaction of the sulfoxide 14 and N 4 -benzoylcytosine.
[EN] METHOD FOR PRODUCING THIOLANE-SKELETON GLYCOCONJUGATE, AND THIOLANE-SKELETON GLYCOCONJUGATE<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN COMPOSÉ SACCHARIDIQUE DE TYPE À SQUELETTE DE THIOLANE AINSI QUE COMPOSÉ SACCHARIDIQUE DE TYPE À SQUELETTE DE THIOLANE<br/>[JA] チオラン骨格型糖化合物の製造方法およびチオラン骨格型糖化合物