Abstract
Site-specific modification of oligonucleotides is a powerful approach for synthesis of oligonucleotides containing various derivatives of nucleobases, sugars, and phosphate backbones. By using this method, the structure of a modified moiety can be effectively screened to find artificial oligonucleotides having desired functions. In fact, many studies using a variety of site-specific modification methods have been reported to date. In this chapter, the site-specific modifications focusing on nucleobases within oligonucleotides are summarized. Moreover, as an experimental example of site-specific modification of an oligonucleotide, the preparation of N,N-disubstituted cytosine derivatives using reaction of 4-triazolylpyrimidin-2-one nucleobase with various secondary amines is demonstrated.
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Hari, Y. (2018). Site-Specific Modification of Nucleobases in Oligonucleotides. In: Obika, S., Sekine, M. (eds) Synthesis of Therapeutic Oligonucleotides. Springer, Singapore. https://doi.org/10.1007/978-981-13-1912-9_8
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DOI: https://doi.org/10.1007/978-981-13-1912-9_8
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