METHOD FOR THE SYNTHESIS OF OLIGONUCLEOTIDE DERIVATIVES
申请人:Morvan Francois
公开号:US20090124571A1
公开(公告)日:2009-05-14
Method for the synthesis of nucleotide derivatives wherein molecules of interest are grafted on the oligonucleotide with the help of a “click chemistry” reaction between an azide function on the molecule of interest and an alkyne function on the oligonucleotide, or between an alkyne function on the molecule of interest and an azide function on the oligonucleotide.
Intermediate molecules, notably alkyne functionalized oligonucleotides, grafted oligonucleotides, azide functionalized oligonucleotides, oligonucleotide micro arrays containing them and the use of those grafted oligonucleotides for biological investigation and for cell targeting.
The synthesis of cyclic, branched, and bicyclic oligonucleotides was performed by copper-catalyzed azide−alkyne cycloaddition assisted by microwaves in solution and on solid support. For that purpose, new phosphoramidite building blocks and new solid supports were designed to introduce alkyne and bromo functions into the same oligonucleotide by solid-phasesynthesis on a DNA synthesizer. The bromine
Thermolytic phosphoramidites and a solid support allow the synthesis of 5′‐ or 3′‐mono(thio)phosphate oligonucleotides. Owing to its thermolytic behavior the solid support allows the direct monitoring of solid‐supported oligonucleotide synthesis by MALDI‐TOF MS.