Nucleotide. XV. Synthese und Eigenschaften von 2?-O-t-Butyldimethylsilyl-5?-O-monomethoxytritylribonucleosid-3?-phosphotriestern, Ausgangssubstanzen f�r Oligonucleotid-Synthesen
Nucleotides. XV. Synthesis and Properties of 2′O-t-Butyldimethylsilyl-5′-O-monomethoxytritylribonucleoside-3′-phosphotriesters, Starting Materials for Oligonucleotide Syntheses
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.