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Phosphorous Compounds for the Synthesis of Triphosphonates of Oligonucleotides
5-Chlorosaligenyl-N,N-diisopropylphosphoramidite (1) and bis(tetrabutylammonium) dihydrogen pyrophosphate (2) are useful reagents to introduce a triphosphate group onto the 5'-end of oligonucleotides. Oligonucleotides can react with 1 in the presence of BTT and subsequent oxidation with iodine to give the 5’-cyclophosphate ester 3. Furthermore, 3 can attach the corresponding triphosphate upon the reaction with 2. 1 and 2 are applicable to both solid phase synthesis and a standard oligonucleotide synthesizer, and are anticipated to be powerful tools in chemical and biochemical research.
- Bis(tetrabutylammonium) Dihydrogen Pyrophosphate
- Solid-Phase Synthesis of DNA and RNA 5’-O-Triphosphates Using cycloSal Chemistry