Conversion of 2-deoxy-<scp>d</scp>-ribose into 2-amino-5-(2-deoxy-β-<scp>d</scp>-ribofuranosyl)pyridine, 2′-deoxypseudouridine, and other C-(2′-deoxyribonucleosides)
作者:Colin B. Reese、Qinpei Wu
DOI:10.1039/b306341k
日期:——
ne 23, 2-amino-5-(2-deoxy-beta-D-ribofuranosyl)-3-methylpyridine 2b, 2-amino-5-(2-deoxy-alpha-D-ribofuranosyl)-3-methylpyridine 29 and 5-(2-deoxy-beta-D-ribofuranosyl)-2,4-dioxopyrimidine [2'-deoxypseudouridine] 30a is described. These C-nucleosides are prepared either from 2-deoxy-3,5-O-(1,1,3,3-tetraisopropyldisiloxan-1,3-diyl)-D-ribofuranose 15 or from 2-deoxy-3,5-O-(1,1,3,3-tetraisopropyldisiloxan-1
2-氨基-5-(2-脱氧-β-D-呋喃呋喃糖基)吡啶2a,2-氨基-5-(2-脱氧-α-D-呋喃呋喃糖基)-吡啶23、2-氨基-5-吡咯烷酮的合成(2-脱氧-β-D-呋喃核糖基)-3-甲基吡啶2b,2-氨基-5-(2-脱氧-α-D-核呋喃糖基)-3-甲基吡啶29和5-(2-脱氧-β-D描述了-(呋喃呋喃糖基)-2,4-二氧嘧啶[2′-脱氧伪神经尿苷] 30a。这些C-核苷可以由2-脱氧-3,5-O-(1,1,3,3-四异丙基二硅氧烷1,3-二基)-D-呋喃呋喃糖15或由2-脱氧-3,5-制备O-(1,1,3,3-四异丙基二硅氧烷-1,3-二基)-D-核糖基-1,4-内酯16本身是由2-脱氧-D-核糖13制备的。首先是糖衍生物。允许其与由5-溴-2-(二苄氨基)吡啶12a,5-溴-2- [双(4-甲氧基苄基)氨基]制得的合适的5-硫代吡啶或5-硫代嘧啶衍生物反应吡啶12b 5-溴-2-二苄基氨基-3-甲基吡啶25和5-溴-2