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Bifunctional aryloxyphosphoramidate prodrugs of 2'-C-Me-uridine: synthesis and anti-HCV activity.

ABSTRACT: In an attempt to identify novel nucleoside phosphoramidate analogues for improving the anti-HCV activity of 2'-C-Me-uridine, we have synthesized for the first time a series of l-glutamic acid, l-serine, l-threonine and l-tyrosine containing aryloxyphosphoramidate prodrugs of 2'-C-Me-uridine. Evaluation of their activity against HCV revealed that they displayed very potent anti-HCV activity, with EC50 values that are in the same range as of Sofosbuvir.

SUBMITTER: Maiti M

PROVIDER: S-EPMC5079539 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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Bifunctional aryloxyphosphoramidate prodrugs of 2'-C-Me-uridine: synthesis and anti-HCV activity.

Maiti Munmun M Gao Ling-Jie LJ Huang Chunsheng C Ptak Roger G RG Murray Michael G MG De Jonghe Steven S Herdewijn Piet P

Organic & biomolecular chemistry 20160901 37

In an attempt to identify novel nucleoside phosphoramidate analogues for improving the anti-HCV activity of 2'-C-Me-uridine, we have synthesized for the first time a series of l-glutamic acid, l-serine, l-threonine and l-tyrosine containing aryloxyphosphoramidate prodrugs of 2'-C-Me-uridine. Evaluation of their activity against HCV revealed that they displayed very potent anti-HCV activity, with EC<sub>50</sub> values that are in the same range as of Sofosbuvir. ...[more]

PMID: 27714209

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Project description:The double-stranded DNA (dsDNA) viruses represented by adenovirus and monkeypox virus, have attracted widespread attention due to their high infectivity. In 2022, the global outbreak of mpox (or monkeypox) has led to the declaration of a Public Health Emergency of International Concern. However, to date therapeutics approved for dsDNA virus infections remain limited and there are still no available treatments for some of these diseases. The development of new therapies for treating dsDNA infection is in urgent need. In this study, we designed and synthesized a series of novel disulfide-incorporated lipid conjugates of cidofovir (CDV) as potential candidates against dsDNA viruses including vaccinia virus (VACV) and adenovirus (AdV) 5. The structure-activity relationship analyses revealed that the optimum linker moiety was C2H4 and the optimum aliphatic chain length was 18 or 20 atoms. Among the synthesized conjugates, 1c exhibited more potency against VACV (IC50 = 0.0960 μM in Vero cells; IC50 = 0.0790 μM in A549 cells) and AdV5 (IC50 = 0.1572 μM in A549 cells) than brincidofovir (BCV). The transmission electron microscopy (TEM) images revealed that the conjugates could form micelles in phosphate buffer. The stability studies in the GSH environment demonstrated that the formation of micelles in phosphate buffer might protect the disulfide bond from glutathione (GSH) reduction. The dominant means of the synthetic conjugates to liberate the parent drug CDV was by enzymatic hydrolysis. Furthermore, the synthetic conjugates remained sufficiently stable in simulated gastric fluid (SGF), simulated intestinal fluid (SIF), and pooled human plasma, which indicated the possibility for oral administration. These results indicated 1c may be a broad-spectrum antiviral candidate against dsDNA viruses with potential oral administration. Moreover, modification of the aliphatic chain attached to the nucleoside phosphonate group was involved as an efficient prodrug strategy for the development of potent antiviral candidates.

Dataset Information

Bifunctional aryloxyphosphoramidate prodrugs of 2'-C-Me-uridine: synthesis and anti-HCV activity.

Publications

Bifunctional aryloxyphosphoramidate prodrugs of 2'-C-Me-uridine: synthesis and anti-HCV activity.

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