Formation of Interribonucleoside Phosphate Bond by the Use of Reagent Formed by the Reaction of 2-Chlorophenyl Phosphorodichloridate with 5-Nitrobenzotriazole and Preparation of Anticodon Triplet of Yeast tRNA<sup>Lys</sup>
作者:Hiroshi Seki、Oyo Mitsunobu
DOI:10.1246/cl.1987.775
日期:1987.5.5
The reagent formed by the reaction of 2-chlorophenyl phosphorodichloridate with an equimolar amount of 5-nitrobenzotriazole was treated with protected ribonucleosides having free 3′-OH, followed by protected ribonucleosides having free 5′-OH in pyridine for 8 h (the second step), the corresponding dinucleoside phosphates being obtained in 55–84% yields. When the second step was carried out in the presence of 2,6-lutidine, the yields were increased to 80–90% within 2h. By this procedure, the anticodon triplet of yeast tRNALys was prepared in 71% yield.
由2-氯苯基磷酸二氯酯与等摩尔量的5-硝基苯并三唑反应生成的试剂,经过处理带有游离3′-OH的保护核糖核苷,然后再处理带有游离5′-OH的保护核糖核苷,在吡啶中反应8小时(第二步),获得相应的二核苷酸磷酸盐,产率为55–84%。当第二步在2,6-路丁啶存在下进行时,产率在2小时内提高至80–90%。通过此步骤,酵母tRNALys的反密码子三联体以71%的产率制备成功。