Nucleic Acids Research, 1985, Vol. 13, No. 10 3651-3666
© 1985
Articles |
Improved rapid phosphotriester synthesis of oligodeoxyribonueleotides using oxygen-nucleoplillic cataiysts
Shemyakin Institute of Bioorganic Chemistry USSR, Academy of Sciences Ul. Miklukho-Maklaya, 16/10 117871 GSP, Moscow, USSR
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Received March 14, 1985. Revised May 1, 1985. Accepted May 1, 1985.
The use of different condensing and phosphorylating agents in conjunction with oxygen-nucleophilic catalysts, such as 4-substituted derivatives of pyridine N-oxide and quinoline N-oxide, leads to a dramatic increase of the rate of the phosphotriester bond formation and minimizes the amount of by-products caused by the modification of heterocyclic bases. The application of these catalysts to the solid-phase oligonucleotide synthesis allows to reduce the time needed for the performance of one elongation cycle on a polymer support to 10 min.