Labile exocyclic amine protection of nucleosides in DNA, RNA and oligonucleotide analog synthesis facililating N-deacylation, minimizing depurination and chain degradation

N. D. Sinha, P. Davis, N. Usman, J. Pérez, R. Hodge, J. Kremsky, R. Casale

Research output: Contribution to journalArticle

87 Scopus citations


The use of tert-butylphenoxyacetyl for N-protection of nucleoside bases during oligonucleotide synthesis facilitates its removal under mild conditions. This protecting group reduces depurination of deoxyadenosine residues, and minimizes premature desilylation resulting in chain degradation during post-synthesis workup of synthetic RNA.

Original languageEnglish (US)
Pages (from-to)13-23
Number of pages11
Issue number1-2
StatePublished - 1993
Externally publishedYes



  • chemical synthesis of DNA, RNA
  • chimeric oligonucleotides
  • oligonucleotide methylphosphonate diesters
  • synthetic ribozyme

ASJC Scopus subject areas

  • Biochemistry

Cite this