Synthesis of a novel benzodifuran derivative and its molecular recognition of poly rA RNA

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In this manuscript, we describe a synthetic approach to a novel benzodifuran derivative as well as CD studies regarding its ability to interact with DNA and RNA. After the chemical synthesis and ESI-MS and NMR characterization, this heteroaromatic molecule was investigated by CD spectroscopy in order to evaluate it as a potential nucleic acid binder. Interestingly, the benzodifuran compound was found to be able to induce conformational changes in both DNA and RNA homoadenine molecules forming in the latter case a complex with a 6:1 benzodifuran/nucleobase stoichiometric ratio, as evidenced by CD titration experiments.

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