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4'-Substituted pyrimidine nucleosides lacking 5'-hydroxyl function as potential anti-HCV agents. 2014

Neeraj Shakya, and Satish Vedi, and Chao Liang, and Fang Yang, and Babita Agrawal, and Rakesh Kumar
Department of Laboratory Medicine and Pathology, 7-28 Heritage Medical Research Centre, University of Alberta, Edmonton, AB T6G 2S2, Canada.

Hepatitis C virus (HCV) infection is one of the major health problems worldwide. If left untreated, it leads to liver cirrhosis, liver cancer and death. Herein, we report synthesis and anti-HCV activity of a new class of pyrimidine nucleosides possessing a 4'-carboxymethyl (9-16, 21 and 23) or 4'-carboxamide function (17-19 and 24). Among these, 10-12 (EC50=33.1-42.4 μM), 14 and 21 (EC50=43.4-59.5 μM) exhibited potent activity in HCV-1a replicon cells without any toxicity to parent Huh-7 cells (CC50=>829-1055 μM). The anti-HCV activities demonstrated by this unusual class of compounds were superior to that of ribavirin (EC50=81.9 μM). Further, the most active analog, 12, was found to interact synergistically with ribavirin to inhibit HCV RNA replication.

UI MeSH Term Description Entries
D011741 Pyrimidine Nucleosides Pyrimidines with a RIBOSE attached that can be phosphorylated to PYRIMIDINE NUCLEOTIDES. Nucleosides, Pyrimidine
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D004357 Drug Synergism The action of a drug in promoting or enhancing the effectiveness of another drug. Drug Potentiation,Drug Augmentation,Augmentation, Drug,Augmentations, Drug,Drug Augmentations,Drug Potentiations,Drug Synergisms,Potentiation, Drug,Potentiations, Drug,Synergism, Drug,Synergisms, Drug
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000998 Antiviral Agents Agents used in the prophylaxis or therapy of VIRUS DISEASES. Some of the ways they may act include preventing viral replication by inhibiting viral DNA polymerase; binding to specific cell-surface receptors and inhibiting viral penetration or uncoating; inhibiting viral protein synthesis; or blocking late stages of virus assembly. Antiviral,Antiviral Agent,Antiviral Drug,Antivirals,Antiviral Drugs,Agent, Antiviral,Agents, Antiviral,Drug, Antiviral,Drugs, Antiviral
D012254 Ribavirin A nucleoside antimetabolite antiviral agent that blocks nucleic acid synthesis and is used against both RNA and DNA viruses. Ribovirin,Tribavirin,ICN-1229,Rebetol,Ribamide,Ribamidil,Ribamidyl,Ribasphere,Vilona,Viramide,Virazide,Virazole,ICN 1229,ICN1229
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships
D014779 Virus Replication The process of intracellular viral multiplication, consisting of the synthesis of PROTEINS; NUCLEIC ACIDS; and sometimes LIPIDS, and their assembly into a new infectious particle. Viral Replication,Replication, Viral,Replication, Virus,Replications, Viral,Replications, Virus,Viral Replications,Virus Replications
D016174 Hepacivirus A genus of FLAVIVIRIDAE causing parenterally-transmitted HEPATITIS C which is associated with transfusions and drug abuse. Hepatitis C virus is the type species. Hepatitis C virus,Hepatitis C-Like Viruses,Hepaciviruses,Hepatitis C Like Viruses,Hepatitis C viruses,Hepatitis C-Like Virus
D045744 Cell Line, Tumor A cell line derived from cultured tumor cells. Tumor Cell Line,Cell Lines, Tumor,Line, Tumor Cell,Lines, Tumor Cell,Tumor Cell Lines

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