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  • Synthesis of acetylene linked double-nucleobase nucleos(t)ide building blocks and polymerase construction of DNA containing cytosines in the major groove.

Synthesis of acetylene linked double-nucleobase nucleos(t)ide building blocks and polymerase construction of DNA containing cytosines in the major groove.

The Journal of organic chemistry (2011-03-24)
Pavel Kielkowski, Radek Pohl, Michal Hocek
ABSTRACT

(Cytosin-5-yl)ethynyl derivatives of pyrimidine and 7-deazaadenine 2-deoxyribonucleosides and nucleoside triphosphates (dNTPs) were prepared in one step by the aqueous Sonogashira coupling of unprotected halogenated nucleos(t)ides with 5-ethynylcytosine. The modified dNTPs were good substrates for DNA polymerases suitable for primer extension or PCR construction of DNA bearing acetylene-linked cytosine(s) in the major groove mimicking the flipped-out nucleotide.