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As an important step of the active demethylation of 5-methylcytosine (5mC), human thymine DNA glycosylase (hTDG) efficiently excises 5-carboxylcytosine (5caC) from double-stranded DNA (dsDNA). Here, we present synthesis of DNA oligos containing a 2′-deoxy-2′-fluoro-d-arabinofuranosyl-5-carboxylcytidine (F-5caC) modification that act as hTDG inhibitors. The glycosylase activity assay showed that F-5caC...
N 1 -Aryl derivatives of 2′-deoxyguanosine (dG) were synthesized by copper(II)-mediated coupling of dG with arylboronic acids. Analogous aryl derivatives of 2′-deoxyinosine (dIn), 2′-deoxyuridine (dU), thymidine (T), 2′-deoxyadenosine (dA), and 2′-deoxycytidine (dC) were also conveniently synthesized by this method. Arylation took place preferentially on the amido functions in dG and dIn and...
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