Expanding the borononucleotide family: synthesis of borono-analogues of dCMP, dGMP and dAMP

Org Biomol Chem. 2009 Nov 7;7(21):4369-77. doi: 10.1039/b912616c. Epub 2009 Aug 27.

Abstract

We previously reported the synthesis of a borononucleotide analogue of thymidine monophosphate and its association towards the formation of a new borono-linked dinucleotide. Here we describe the completion of the set of four 2'-deoxyborononucleotide analogues of natural nucleotide monophosphates, namely the previously unknown dCbn, dGbn and dAbn. These analogues were all prepared from the respective 5'-aldehydic nucleosides through a homologation/reduction sequence. The borononucleotides were subsequently obtained by either borylation (dCbn and dGbn) or cross-metathesis (CM) in the presence of the Hoveyda-Grubbs catalyst (dAbn). The reversible formation of the corresponding dinucleotides between these new analogues and uridine was studied by (1)H NMR, and semi-empirical calculations were carried out to provide bond length and electrostatic information that assess the structural similarities existing between these bioisosteres and their natural counterparts.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Boron / chemistry*
  • Deoxyadenine Nucleotides / chemistry*
  • Deoxycytidine Monophosphate / chemistry*
  • Deoxyguanine Nucleotides / chemistry*
  • Deoxyribonucleotides / chemical synthesis*
  • Deoxyribonucleotides / chemistry*
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Conformation
  • Uridine / chemistry

Substances

  • Deoxyadenine Nucleotides
  • Deoxyguanine Nucleotides
  • Deoxyribonucleotides
  • Deoxycytidine Monophosphate
  • 2'-deoxy-5'-adenosine monophosphate
  • 2'-deoxyguanosine 5'-phosphate
  • Boron
  • Uridine