Synthesis and Conformational Analyses of Cyclonucleoside Having 13-Membered Ring Bridging Nucleobase and 5'-Position via a Linker Containing Sulfonamide.

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  • Additional Information
    • Source:
      Publisher: American Chemical Society Country of Publication: United States NLM ID: 100890393 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1523-7052 (Electronic) Linking ISSN: 15237052 NLM ISO Abbreviation: Org Lett Subsets: MEDLINE
    • Publication Information:
      Original Publication: Washington, DC : American Chemical Society, c1999-
    • Subject Terms:
    • Abstract:
      A cyclic nucleoside has been designed and synthesized to serve as a conformationally fixed building block for the development of functional oligonucleotides. The bridge was introduced between the nucleobase and the 5'-position to fix the rotation around the C4'-C5' bond, the base orientation, and the sugar puckering all at once. The 13-membered cyclic structure was introduced using a sulfonamide linkage, which retains an N-H group that can be used to attach an additional nucleoside moiety. The sulfonamide linkage was formed through the end-to-end cyclization of an intermediate that contained both a sulfonyltriazole and amino groups. Both 1 H NMR and computational studies revealed that the sugar conformation, base orientation, and γ torsion angle were S -type, anti , and trans , respectively. As such, cyclic nucleosides show promise for introducing these specific distorted conformations into functional nucleic acids.
    • Accession Number:
      0 (Nucleosides)
      0 (Oligonucleotides)
      0 (Nucleic Acids)
      0 (Sugars)
    • Publication Date:
      Date Created: 20231019 Date Completed: 20231106 Latest Revision: 20231206
    • Publication Date:
      20231215
    • Accession Number:
      10.1021/acs.orglett.3c03094
    • Accession Number:
      37857270