[EN] SUBSTITUTED PURINE NUCLEOSIDES, PHOSPHORAMIDATE AND PHOSPHORDIAMIDATE DERIVATIVES FOR TREATMENT OF VIRAL INFECTIONS<br/>[FR] NUCLÉOSIDES DE PURINE SUBSTITUÉS, DÉRIVÉS PHOSPHORAMIDATE ET PHOSPHORDIAMIDATE DESTINÉS À TRAITER DES INFECTIONS VIRALES
申请人:INHIBITEX INC
公开号:WO2013070887A1
公开(公告)日:2013-05-16
This invention is directed to compounds of Formula (I) having the structure that are useful in the treatment of viral infections in mammals, particularly in humans, mediated, at least in part, by a virus in the Flaviviridae family of viruses.
Phosphoramidate ProTides of 2′-<i>C</i>-Methylguanosine as Highly Potent Inhibitors of Hepatitis C Virus. Study of Their in Vitro and in Vivo Properties
recognized as potent and selective inhibitors of HCV in replicon assay but lack rodent plasma stability despite considerable ester variation. Amino acid variation retaining the lead benzyl ester moiety gives an increase in rodent stability but at the cost of potency. Finally l-valine esters with ester variation lead to potent, stable compounds. Pharmacokinetic studies on these agents in the mouse reveal
Phosphoramidate Derivatives of Guanosine Nucleoside Compunds for Treatment of Viral Infections
申请人:Chamberlain Stanley
公开号:US20120052046A1
公开(公告)日:2012-03-01
Phosphoramidate compounds derived from guanine bases having enhanced therapeutic potency are provided, and these compounds in particular have enhanced potency with respect to treatment of viral infections, such as hepatitis C virus. Pharmaceutical compositions, methods of preparing the compounds, and methods of using the compounds and compositions to treat viral infections are also provided.
Substituted Purine Nucleosides, Phosphoramidate and Phosphordiamidate Derivatives for Treatment if Viral Infections
申请人:INHIBITEX, INC.
公开号:US20140286903A1
公开(公告)日:2014-09-25
This invention is directed to compounds of Formula (I) having the structure that are useful in the treatment of viral infections in mammals, particularly in humans, mediated, at least in part, by a virus in the Flaviviridae family of viruses.
We herein report a novel double pro-drug approach applied to the anti-HCV agent 2'-beta-C-methyl guanosine. A phosphoramidate ProTide motif and a 6-O-methoxy base pro-drug moiety are combined to generate lipophilic prodrugs of the monophosphate of the guanine nucleoside. Modi. cation of the ester and amino acid moieties lead to a compound INX-08189 that exhibits 10 nM potency in the HCV genotype 1b subgenomic replicon, thus being 500 times more potent than the parent nucleoside. The potency of the lead compound INX-08189 was shown to be consistent with intracellular 2'-C-methyl guanosine triphosphate levels in primary human hepatocytes. The separated diastereomers of INX-08189 were shown to have similar activity in the replicon assay and were also shown to be similar substrates for enzyme processing. INX-08189 has completed investigational new drug enabling studies and has been progressed into human clinical trials for the treatment of chronic HCV infection. (c) 2010 Elsevier Ltd. All rights reserved.