Synthesis of the first example of a nucleoside analogue bearing a 5′-deoxy-β-d-allo-septanose as a seven-membered ring sugar moiety

The first example of a nucleoside analogue bearing a 5′-deoxy-β-d-allo-septanose as a seven-membered ring sugar moiety, namely 9-(5-deoxy-β-d-allo-septanosyl)-adenine, is reported. This compound was synthesized in 14 steps from the commercially available d-glycero-d-gulo-1,4-lactone. When evaluated in cell culture experiments against a broad range of viruses, it did not exhibit any significant antiviral effect or cytotoxicity.

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