Enzymatic synthesis of ribo- and 2′-deoxyribonucleosides from glycofuranosyl phosphates: An approach to facilitate isotopic labeling
作者:Wenhui Zhang、Toby Turney、Ivana Surjancev、Anthony S. Serianni
DOI:10.1016/j.carres.2017.07.006
日期:2017.9
Milligram quantities of α-D-ribofuranosyl 1-phosphate (sodium salt) (αR1P) were prepared by the phosphorolysis of inosine, catalyzed by purine nucleoside phosphorylase (PNPase). The αR1P was isolated by chromatography in >95% purity and characterized by 1H and 13C NMR spectroscopy. Aqueous solutions of αR1P were stable at pH 6.4 and 4 °C for several months. The isolated αR1P was N-glycosylated with
13C-Enriched ribonucleosides: synthesis and application of 13C-1H and 13C-13C spin-coupling constants to assess furanose and N-glycoside bond conformations
作者:Paul C. Kline、Anthony S. Serianni
DOI:10.1021/ja00176a043
日期:1990.9
3prime}-O-isopropylidene-2,5prime}-O-cyclouridine (8). The latter data were used to construct a crude Karplus curve for the sup13}C-C-N-sup13}Ccoupling pathway across the N-glycoside bond in 1-4. sup1}H-sup1}H, sup13}C-sup1}H, and sup13}C-sup13}Ccoupling data are used to evaluate current models describing the conformational dynamics of 1-4 in aqueous solution.
EFFICIENT SYNTHESIS OF<scp>D</scp>-[1′-<sup>13</sup>C]-RIBONUCLEOSIDES FOR INCORPORATION INTO OLIGO-RNA
作者:Y. Saito、A. Nyilas、L. A. Agrofoglio
DOI:10.1081/ncn-100002463
日期:2001.3.31
Syntheses of the monomer building blocks used for the solid-phase synthesis of specifically 1'-13C-labeled oligoribonucleotides from the D-[1-13C]ribose is presented. Procedure has been used for the selective formation of 2'-O-silylated ribonucleosides. After 5'-O-dimethoxytritylation, the synthesis of D-[1'-13C] ribonucleoside phosphoramidites has been achieved.