A BH3 masked H-phosphonate for coupling in oligonucleotide synthesis
摘要:
A method of masking 3'-H-phosphonate group for the solution-phase synthesis of ribonucleotide by H-phosphonate approach was described. The phosphonic acid group was masked by bis-(2-cyanoethyl) boranophosphate during the reactions. After a successive demasking treatment by triethylamine, trityl cation, and triethylamine, the triethylammonium 3'-H-phosphonate nucleotide can be obtained efficiently ready for the coupling cycle in synthesis of oligonucleotide. (C) 2013 Published by Elsevier Ltd.
A BH3 masked H-phosphonate for coupling in oligonucleotide synthesis
摘要:
A method of masking 3'-H-phosphonate group for the solution-phase synthesis of ribonucleotide by H-phosphonate approach was described. The phosphonic acid group was masked by bis-(2-cyanoethyl) boranophosphate during the reactions. After a successive demasking treatment by triethylamine, trityl cation, and triethylamine, the triethylammonium 3'-H-phosphonate nucleotide can be obtained efficiently ready for the coupling cycle in synthesis of oligonucleotide. (C) 2013 Published by Elsevier Ltd.