期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 64, 期 20, 页码 15429-15439出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.1c01481
关键词
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资金
- NIH [R01-GM110129, R21-AI146856, R01-AI045818, P30CA77598]
- Office of the Vice President for Research, University of Minnesota
By synthesizing phosphoramidate prodrug HLB-0532247, elevated levels of ddhCTP in cells can be achieved, resulting in potent antiviral effects in cell culture. This drug 1 demonstrates more effective reduction of Zika and West Nile virus titers compared to 3'-deoxy-3',4'-didehydro-cytidine, with minimal nonspecific toxicity to host cells.
The naturally occurring nucleotide 3'-deoxy-3',4'-didehydro-cytidine-5'-triphosphate (ddhCTP) was recently found to exert potent and broad-spectrum antiviral activity. However, nucleoside 5'-triphosphates in general are not cell-permeable, which precludes the direct use of ddhCTP as a therapeutic. To harness the therapeutic potential of this endogenous antiviral nucleotide, we synthesized phosphoramidate prodrug HLB-0532247 (1) and found it to result in dramatically elevated levels of ddhCTP in cells. We compared 1 and 3'-deoxy-3',4'-didehydro-cytidine (ddhC) and found that 1 more effectively reduces titers of Zika and West Nile viruses in cell culture with minimal nonspecific toxicity to host cells. We conclude that 1 is a promising antiviral agent based on a novel strategy of facilitating elevated levels of the endogenous ddhCTP antiviral nucleotide.
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