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Relevant academic research and scientific papers

Synthesis method for azvudine

The invention discloses a synthesis method for azvudine. The method comprises the following steps of carrying out a hydroxyl substitution reaction on a compound 4 and an iodine elementary substance toobtain a compound 5, carrying out an elimination reaction on an iodo group in the compound 5 to obtain a compound 6, reacting the compound 6 with azide under the catalysis of ICl to obtain a compound7, carrying out an iodine substitution reaction on the compound 7 and carboxylic acid to obtain a compound 8, and carrying out an amino and hydroxyl deprotection reaction on the compound 8 to obtaina compound 9, namely the alzvudine. Compared with an existing synthesis method, the synthesis method has the advantages of short synthesis route, shortened reaction time, mild reaction conditions andeasily controlled reaction process, can be used for preparing the alzvudine with the lower cost, and has a very good application prospect.

4'-AZIDO SUBSTITUTED NUCLEOSIDE DERIVATIVES AS INHIBITORS OF EBOLA VIRUS RNA REPLICATION

The application discloses compounds of Formula I wherein the variable substituents are as defined herein. The compounds of Formula I and pharmaceutical compositions comprising compounds of Formula I are useful for the treatment of diseases mediated by Filoviruses such as Ebolavirus.

3-methyl uridine and 4-methyl cytidine nucleoside compound, synthetic method and its pharmaceutical use

The invention discloses a 3-methyluridine and 4-methylcytidine nucleosides compound and a synthesis method and pharmaceutical application thereof, belonging to the field of medicinal chemistry. The compound has a structural formula as shown in the specification. The compound has the effects of simultaneously modifying sugar rings and basic groups, increasing the activity of the compound and reducing the toxicity, provides a good application prospect for development of like medicines and can be applied to preparation of anti-HBV (Hepatitis B virus) medicines. The synthesis method is simple and feasible and provides conditions for mass synthesis of the compound.

Azido nucleosides and nucleotide analogs

Disclosed herein are 4′-azido-substituted nucleosides, nucleotides and analogs thereof, pharmaceutical compositions that include one or more of 4′-azido-substituted nucleosides, nucleotides and analogs thereof, and methods of synthesizing the same. Also disclosed herein are methods of ameliorating and/or treating a disease and/or a condition, including an infection from a paramyxovirus and/or an orthomyxovirus, with a 4′-azido-substituted nucleoside, a nucleotide and/or an analog thereof. Examples of viral infections include a respiratory syncytial viral (RSV) and influenza infection.

SUBSTITUTED NUCLEOSIDES, NUCLEOTIDES AND ANALOGS THEREOF

Disclosed herein are nucleosides, nucleotides and analogs thereof, pharmaceutical compositions that include one or more of nucleosides, nucleotides and analogs thereof, and methods of synthesizing the same. Also disclosed herein are methods of ameliorating and/or treating a disease and/or a condition, including an infection from a norovirus, with a nucleoside, a nucleotide and an analog thereof.

The design, synthesis, and antiviral activity of monofluoro and difluoro analogues of 4′-azidocytidine against hepatitis C virus replication: The discovery of 4′-azido-2′-deoxy-2′-fluorocytidine and 4′-azido-2′-dideoxy-2′,2′-difluorocytidine

The discovery of 4′-azidocytidine (3) (R1479) (J. Biol. Chem. 2006, 281, 3793; Bioorg. Med. Chem. Lett. 2007, 17, 2570) as a potent inhibitor of RNA synthesis by NS5B (EC50 = 1.28 μM), the RNA polymerase encoded by hepatitis C virus (HCV), has led to the

2',4'-SUBSTITUTED NUCLEOSIDES AS ANTIVIRAL AGENTS

Embodiments of the invention are to compounds of formulae (A), (A'), methods, and compositions for use in the treatment of viral infections. More specifically embodiments of the invention aur 2 ', 4 ' -substituted nucleoside compounds useful for the treat