1256294-82-2

Upstream product

• 102691-36-1 N,N,N',N'-tetraisopropyl 2-cyanoethylphosphorodiamidite 
• 112154-53-7 N₂-isobutyryl-1,N₂-[1,2-di(isobutyryloxy)ethylene]-3',5'-O-(4,4'-dimethoxytrityl)-2'-deoxyguanosine 

Relevant academic research and scientific papers

Synthesis of oligodeoxynucleotides using fully protected Deoxynucleoside 3c-Phosphoramidite building blocks and base recognition of Oligodeoxynucleotides incorporating N3-Cyano-Ethylthymine

Oligodeoxynucleotide (ODN) synthesis, which avoids the formation of side products, is of great importance to biochemistry-based technology development. One side reaction of ODN synthesis is the cyanoethylation of the nucleobases. We suppressed this reaction by synthesizing ODNs using fully protected deoxynucleoside 3c-phosphoramidite building blocks, where the remaining reactive nucleobase residues were completely protected with acyl-, diacyl-, and acyl-oxyethylene-type groups. The detailed analysis of cyanoethylation at the nucleobase site showed that N3-protection of the thymine base efficiently suppressed the Michael addition of acrylonitrile. An ODN incorporating N3-cyanoethylthymine was synthesized using the phosphoramidite method, and primer extension reactions involving this ODN template were examined. As a result, the modified thymine produced has been proven to serve as a chain terminator.