Synthesis of 2‐Deoxy‐2‐fluoro‐2‐C‐methyl‐D‐ribofuranoses.

Clark, Jeremy L.; Mason, Joan; Hobbs, Ann; Hollecker, Laurent; Schinazi, Raymond F.

doi:10.1002/chin.200704188

ChemInform

2007

DOI: 10.1002/chin.200704188

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Synthesis of 2‐Deoxy‐2‐fluoro‐2‐C‐methyl‐D‐ribofuranoses.

Jeremy L. Clark

Joan Mason

Ann Hobbs

et al.

Abstract: Synthesis of 2-Deoxy-2-fluoro-2-C-methyl-D-ribofuranoses. -The synthesis of novel carbohydrate building blocks for base-modified 2'-fluoronucleosides is described. Key step is the fluorination of the tertiary center of 2-C-methyl-β-D-arabinofuranoside (II). -(CLARK*, J. L.; MASON, J. C.; HOBBS, A. J.; HOLLECKER, L.; SCHINAZI, R. F.; J.

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Design of novel broad‐spectrum antiviral nucleoside analogues using natural bases ring‐opening strategy

Du,

Yang,

Zhao

et al. 2024

Drug Development Research

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The global prevalence of RNA virus infections has presented significant challenges to public health in recent years, necessitating the expansion of its alternative therapeutic library. Due to its evolutional conservation, RNA‐dependent RNA polymerase (RdRp) has emerged as a potential target for broad‐spectrum antiviral nucleoside analogues. However, after over half a century of structural modification, exploring unclaimed chemical space using frequently‐used structural substitution methods to design new nucleoside analogues is challenging. In this study, we explore the use of the “ring‐opening” strategy to design new base mimics, thereby using these base mimics to design new nucleoside analogues with broad‐spectrum antiviral activities. A total of 29 compounds were synthesized. Their activity against viral RdRp was initially screened using an influenza A virus RdRp high‐throughput screening model. Then, the antiviral activity of 38a was verified against influenza virus strain A/PR/8/34 (H1N1), demonstrating a 50% inhibitory concentration (IC50) value of 9.95 μM, which was superior to that of ribavirin (the positive control, IC50 = 11.43 μM). Moreover, 38a also has inhibitory activity against coronavirus 229E with an IC50 of 30.82 μM. In addition, compounds 42 and 46f exhibit an 82% inhibition rate against vesicular stomatitis virus at a concentration of 20 μM and hardly induce cytotoxicity in host cells. This work demonstrates the feasibility of designing nucleoside analogues with “ring‐opening” bases and suggests the “ring‐opening” nucleosides may have greater polarity, and designing prodrugs is an important aspect of optimizing their antiviral activity. Future research should focus on enhancing the conformational restriction of open‐loop bases to mimic Watson‐Crick base pairing better and improve antiviral activity.

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Design of novel broad‐spectrum antiviral nucleoside analogues using natural bases ring‐opening strategy

Du,

Yang,

Zhao

et al. 2024

Drug Development Research

View full text Add to dashboard Cite

show abstract

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Synthesis of 2‐Deoxy‐2‐fluoro‐2‐C‐methyl‐D‐ribofuranoses.

Cited by 1 publication

References 1 publication

Design of novel broad‐spectrum antiviral nucleoside analogues using natural bases ring‐opening strategy

Design of novel broad‐spectrum antiviral nucleoside analogues using natural bases ring‐opening strategy

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