[EN] NUCLEIC ACID CHEMICAL MODIFICATIONS<br/>[FR] MODIFICATIONS CHIMIQUES D'ACIDE NUCLÉIQUE
申请人:ALNYLAM PHARMACEUTICALS INC
公开号:WO2010101951A1
公开(公告)日:2010-09-10
he present invention provides nucleosides of formula (1) and oligonucleotides comprising at least on nucleoside of formula (2): Another aspect of the invention relates to a method of inhibiting the expression of a gene in cell, the method comprising (a) contacting an oligonucleotide of the invention with the cell; and (b) maintaining the cell from step (a) for a time sufficient to obtain degradation of the mRNA of the target gene.
The present invention relates to nucleoside diphosphate mimics and nucleoside triphosphate mimics, which contain diphosphate or triphosphate moiety mimics and optionally sugar-modifications and/or base-modifications. The nucleotide mimics of the present invention, in a form of a pharmaceutically acceptable salt, a pharmaceutically acceptable prodrug, or a pharmaceutical formulation, are useful as antiviral, antimicrobial, and anticancer agents. The present invention provides a method for the treatment of viral infections, microbial infections, and proliferative disorders. The present invention also relates to pharmaceutical compositions comprising the compounds of the present invention optionally in combination with other pharmaceutically active agents.
Synthesis and anti-viral activity of a series of d- and l-2′-deoxy-2′-fluororibonucleosides in the subgenomic HCV replicon system
作者:Junxing Shi、Jinfa Du、Tianwei Ma、Krzysztof W. Pankiewicz、Steven E. Patterson、Phillip M. Tharnish、Tamara R. McBrayer、Lieven J. Stuyver、Michael J. Otto、Chung K. Chu
DOI:10.1016/j.bmc.2004.12.011
日期:2005.3.1
of the N(4)-hydroxyl and the 2'-fluoro into one molecule, resulting (2'R)-d-2'-deoxy-2'-fluoro-N(4)-hydroxycytidine (23). However, this nucleoside showed neither anti-HCV activity nor toxicity. All the l-forms of the analogues were devoid of anti-HCV activity. None of the compounds showed anti-BVDV activity, suggesting that the BVDV system cannot always predict anti-HCV activity.
[EN] CYTIDINE-5-CARBOXAMIDE MODIFIED NUCLEOTIDE COMPOSITIONS AND METHODS RELATED THERETO<br/>[FR] COMPOSITIONS NUCLÉOTIDIQUES DE CYTIDINES À MODIFICATION 5-CARBOXAMIDE ET PROCÉDÉS ASSOCIÉS
申请人:SOMALOGIC INC
公开号:WO2015077292A1
公开(公告)日:2015-05-28
Described herein are 5-position modified cytosine nucleotides and nucleosides as well as phosphoramidites and triphosphates derivatives thereof. Further provided are methods of making and using the same, and compositions and uses of the modified nucleosides as part of a nucleic acid molecule (e.g., aptamer).
Practical Synthesis of Cytidine-5-Carboxamide-Modified Nucleotide Reagents
作者:John C. Rohloff、Catherine Fowler、Brian Ream、Jeffrey D. Carter、Greg Wardle、Tim Fitzwater
DOI:10.1080/15257770.2014.978011
日期:2015.3.4
practical synthesis of 5-(N-benzylcarboxamide)-2′-deoxycytidine, and the corresponding 5-(N-1-naphthylmethylcarboxamide)- and 5-(N-3-phenylpropylcarboxamide)-2′-deoxycytidine analogs, as both the suitably-protected 3′-O-cyanoethylphosphoramidite reagents (CEP; gram scale) and the 5′-O-triphosphate reagents (TPP; milligram-scale). The key step in the syntheses is a mild, palladium(0)-catalyzed carboxyamidation