Pteridine Nucleosides—New Versatile Building Blocks in Oligonucleotide Synthesis
摘要:
Chemical syntheses of 1-(2-deoxy-beta-D-ribofuranosyl)lumazines and isopterins as well as 8-(2-deoxy-beta-D-ribofuranosyl)-4-amino-7(8H)pteridones and -isoxanthopterins have been developed to make the structural analogs of the naturally occurring 2'-deoxyribonucleosides in the pteridine series available. The corresponding phosphoramidites have been used in machine-aided solid-support syntheses leading to new types of fluorescence labeled oligonucleotides. The effects of the various fluorophors on duplex formation and as labels for enzyme reactions is demonstrated.
Nucleotides. Part LIV. Synthesis of condensedN1-(2?-deoxy-?-D-ribofuranosyl)lumazines, New fluorescent building blocks in oligonucleotide synthesis
作者:Angelika Rosler、Wolfgang Pfleiderer
DOI:10.1002/hlca.19970800611
日期:1997.9.22
3′-(2-cyanoethyI diisopropylphosphoramidites) 34–39 which function as monomeric building block in oligonucleotide syntheses as well as into the 3′-(hydrogen succinates) 40–45 which can be used for coupling with the solid-support material. A series of lumazine-modified oligonucleotides were synthesized and the influence of the new nucleobases on the stability of duplex formation studied by measuring the Tm values
Chemical syntheses of 1-(2-deoxy-beta-D-ribofuranosyl)lumazines and isopterins as well as 8-(2-deoxy-beta-D-ribofuranosyl)-4-amino-7(8H)pteridones and -isoxanthopterins have been developed to make the structural analogs of the naturally occurring 2'-deoxyribonucleosides in the pteridine series available. The corresponding phosphoramidites have been used in machine-aided solid-support syntheses leading to new types of fluorescence labeled oligonucleotides. The effects of the various fluorophors on duplex formation and as labels for enzyme reactions is demonstrated.