A rapid and convenient synthesis of poly-thymidylic acid by the modified triester approach - PubMed (original) (raw)

A rapid and convenient synthesis of poly-thymidylic acid by the modified triester approach

A K Sood et al. Nucleic Acids Res. 1977 Aug.

Free PMC article

Abstract

By using anhydrous triethylamine-pyridine to selectively remove the cyanoethyl group from the fully protected oligonucleotide, a substantial improvement has been achieved in yields and the rates of condensation by the modified triester approach from the 5' leads to 3' end. The unreacted oligonucleotide containing the 5'-hydroxy group was removed by treatment with bis (triazolyl)-p-chlorophenyl phosphate after each condensation in situ. These modifications, as exemplified by the synthesis of fully protected T12, T18, T24 and T38 in 80%, 77%, 70% and 50% yields respectively, should allow the ready synthesis of polynucleotides of even longer chain lengths by purely chemical methods.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Nucleic Acids Res. 1976 Dec;3(12):3397-408 - PubMed
    1. Nucleic Acids Res. 1977 Feb;4(2):353-71 - PubMed
    1. J Chem Soc Perkin 1. 1977;4:445-60 - PubMed
    1. Nature. 1976 Oct 28;263(5580):744-8 - PubMed
    1. Chem Ber. 1969;102(7):2362-77 - PubMed

MeSH terms

Substances

LinkOut - more resources