β-d-2′-C-Methyl-2,6-diaminopurine Ribonucleoside Phosphoramidates are Potent and Selective Inhibitors of Hepatitis C Virus (HCV) and Are Bioconverted Intracellularly to Bioactive 2,6-Diaminopurine and Guanosine 5′-Triphosphate Forms
摘要:
The conversion of selected beta-d-2,6-diaminopurine nucleosides (DAPNs) to their phosphoramidate prodrug (PD) substantially blocks the conversion to the G-analog allowing for the generation of two bioactive nucleoside triphosphates (NTPs) in human hepatocytes. A variety of 2'-C-methyl DAPN-PDs were prepared and evaluated for inhibition of HCV viral replication in Huh-7 cells, cytotoxicity in various cell lines, and cellular pharmacology in both Huh-7 and primary human liver cells. The DAPN-PDs were pan-genotypic, effective against various HCV resistant mutants, and resistant variants could not be selected. 2'-C-Me-DAPN-TP and 2'-C-Me-GTP were chain terminators for genotype 1b HCV-pol, and single nucleotide incorporation assays revealed that 2'-C-Me-DAPN-TP was incorporated opposite U. No cytotoxicity was observed with our DAPN-PD when tested up to 50 mu M. A novel, DAPN-PD, 15c, has been selected for further evaluation because of its good virologic and toxicologic profile and its ability to deliver two active metabolites, potentially simplifying HCV treatment.
SUBSTITUTED NUCLEOSIDES, NUCLEOTIDES AND ANALOGS THEREOF
申请人:ALIOS BIOPHARMA, INC.
公开号:US20150366888A1
公开(公告)日:2015-12-24
Disclosed herein are nucleosides, nucleotides and nucleotide analogs, methods of synthesizing the same and methods of treating diseases and/or conditions such as a Coronaviridae virus, a Togaviridae virus, a Hepeviridae virus and/or a Bunyaviridae virus infection with one or more nucleosides, nucleotides and nucleotide analogs.
[EN] METHODS AND COMPOUNDS FOR TREATING PARAMYXOVIRIDAE VIRUS INFECTIONS<br/>[FR] PROCÉDÉS ET COMPOSÉS POUR TRAITER DES INFECTIONS À VIRUS PARAMYXOVIRIDAE
申请人:GILEAD SCIENCES INC
公开号:WO2012012776A1
公开(公告)日:2012-01-26
Provided are methods for treating Paramyxoviridae virus infections by administering ribosides, riboside phosphates and prodrugs thereof, of Formula (I): wherein the 1 ' position of the nucleoside sugar is substituted. The compounds, compositions, and methods provided are particularly useful for the treatment of Human parainfluenza and Human respiratory syncytial virus infections.
[EN] METHODS FOR TREATING FILOVIRIDAE VIRUS INFECTIONS<br/>[FR] MÉTHODES POUR LE TRAITEMENT D'INFECTIONS VIRALES À FILOVIRIDAE
申请人:GILEAD SCIENCES INC
公开号:WO2016069826A1
公开(公告)日:2016-05-06
Provided are compounds, methods, and pharmaceutical compositions for treating Filoviridae vims infections by administering ribosides, riboside phosphates and prodrugs thereof, of Formula (IV): The compounds, compositions, and methods provided are particularly useful for the treatment of Marburg virus, Ebola virus and Cueva virus infections.
METHODS FOR TREATING ARENAVIRIDAE AND CORONAVIRIDAE VIRUS INFECTIONS
申请人:Gilead Sciences, Inc.
公开号:US20170071964A1
公开(公告)日:2017-03-16
Provided are methods for treating Arenaviridae and Coronaviridae virus infections by administering nucleosides and prodrugs thereof, of Formula I:
wherein the 1′ position of the nucleoside sugar is substituted. The compounds, compositions, and methods provided are particularly useful for the treatment of Lassa virus and Junin virus infections.