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C-5 modified nucleosides: direct insertion of alkynyl-thio functionality in pyrimidines
Heike A Held1, Abhijit Roychowdhury, Steven A Benner
1Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA.
Nucleosides, Nucleotides & Nucleic Acids
|July 30, 2003
Summary
A new method attaches alkynyl thioesters to unprotected nucleosides in one step. This facilitates the creation of functionalized DNA for in vitro selection experiments.
Area of Science:
- Organic Chemistry
- Molecular Biology
- Nucleoside Chemistry
Background:
- Nucleoside modification is crucial for developing novel biochemical tools.
- Functionalized DNA is essential for in vitro selection experiments.
Purpose of the Study:
- To develop a facile method for introducing alkynyl thioesters onto nucleosides.
- To enable the synthesis of modified nucleosides for DNA applications.
Main Methods:
- A one-step reaction for appending alkynyl thioesters to the 5-position of pyrimidine nucleosides.
- Utilizing unprotected nucleosides to streamline the synthetic process.
Main Results:
- Successful synthesis of alkynyl thioester-functionalized pyrimidine nucleosides.
- Demonstrated utility of the products in preparing functionalized DNA.
Conclusions:
- The presented route offers an efficient method for nucleoside functionalization.
- The resulting modified nucleosides are valuable for in vitro selection and DNA engineering.