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A new strategy for the synthesis of N3‐benzoylated‐ and N3‐benzylated N1‐propargylquinazoline‐2,4‐diones 30a−d and 31a−d from isatoic anhydride 41 is reported. The alkynes 30a−d and 31a−d were applied in the 1,3‐dipolar cycloadditions with azides 27 and 28 to synthesize acyclic 1,2,3‐triazole nucleosides. The obtained alkynes and 1,2,3‐triazole were evaluated for antiviral activity against a broad...
A novel series of ribonucleosides of 1,2,3‐triazolylbenzyl‐aminophosphonates was synthesized through the Kabachnik–Fields reaction using I2 as catalyst followed by copper‐catalyzed cycloaddition of the azide–alkyne reaction (CuAAC). All structures of the newly prepared compounds were characterized by 1H NMR, 13C NMR, and HRMS spectra. The structures of 2e, 2f, 3d, and 3g were further confirmed by...
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