A novel approach to oligodeoxyribonucleotides bearing phosphoric acid esters at the 3'-terminals via the phosphoramidite method with allyl protection: An efficient synthesis of base-labile nucleotide-amino acid and - peptide conjugates

Akira Sakakura, Yoshihiro Hayakawa, Hitoshi Harada, Masaaki Hirose, Ryoji Noyori

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A new method for synthesis of 3'-end-phosphorylated DNA oligomers via the phosphoramidite method with allyl protection has been developed. This method is particularly useful for the preparation of derivatives with base- labile structures such as oligoDNA-OPO(OH)OCH2CH(R)Z, in which Z is an electron-withdrawing function. For example, a oligonucleotide-amino acid conjugate, 5'TGTCGACACCCAATT3'-OPO(OH)OCH2CH(NH2)COOH, and a oligonucleotide-peptide conjugate, 5'TGTCGACACCCAATT3'- OPO(OH)OCH2CH(NH2)CONHCH2COOH, have been obtained in high purity.

Original languageEnglish
Pages (from-to)4359-4362
Number of pages4
JournalTetrahedron Letters
Volume40
Issue number23
DOIs
Publication statusPublished - Jun 4 1999
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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