2-Aminopyridine as a Nucleobase Substitute for Adenine in DNA-like Architectures: Synthesis of Alkynyl C-Nucleotides and Their Hybridization Characteristics

Fumihiro Kurosaki, Junya Chiba*, Yutaro Oda, Airi Hino, Masahiko Inouye

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Halogenated 2-aminopyridine was attached to the acetylene terminal of ethynyl C-2-deoxy-β-d-ribofuranoside as a nucleobase substitute, and then, the C-nucleoside was incorporated into natural DNAs. The resulting chimeric DNA constructed double helical structures with the complementary chimeric DNA. In the duplex, 2-aminopyridine functioned as an adenine analogue that formed a base pair with a non-natural thymine isostere. Artificial homooligomers were also prepared only from the adenine-type C-nucleoside and proven to form completely artificial double helices with the corresponding artificial thymine-type homooligomers.

Original languageEnglish
Pages (from-to)2666-2671
Number of pages6
JournalJournal of Organic Chemistry
Volume85
Issue number4
DOIs
StatePublished - 2020/02/21

ASJC Scopus subject areas

  • Organic Chemistry

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