Filibuvir
Systematic (IUPAC) name | |
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(2R)-2-cyclopentyl-2-[2-(2,6-diethylpyridin-4-yl)ethyl]-5-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-4-hydroxy-3H-pyran-6-one | |
Clinical data | |
Routes of administration | Oral |
Legal status | |
Legal status |
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Identifiers | |
CAS Number | 877130-28-4 |
ATC code | none |
PubChem | CID 54708673 |
ChemSpider | 26286922 |
UNII | 198J479Y2L |
KEGG | D09616 |
ChEMBL | CHEMBL490672 |
Synonyms | PF-00868554 |
PDB ligand ID | AG0 (PDBe, RCSB PDB) |
Chemical data | |
Formula | C29H37N5O3 |
Molar mass | 503.636 g/mol |
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Filibuvir (also known as PF-00868554, PF-868554) was a non-nucleoside orally available[1] NS5B inhibitor developed by Pfizer for the treatment of hepatitis C. It binds to the non-catalytic Thumb II allosteric pocket of NS5B viral polymerase and causes a decrease in viral RNA synthesis. It is a potent and selective inhibitor, with a mean IC50 of 0.019 μM against genotype 1 polymerases.[2] Several filibuvir-resistant mutations have been identified, M423 being the most common that occurred after filibuvir monotherapy.[3] It was intended to be taken twice-daily.[4]
Its investigation was discontinued on February 2013 due to strategic reasons.[5][6]
References
- ↑ "Pfizer Halts Development of Hepatitis C Drug Filibuvir: Report". FirstWorld Pharma. Doctor's Guide Publishing Limited. Retrieved 5 December 2015.
- ↑ Shi, S. T.; Herlihy, K. J.; Graham, J. P.; Nonomiya, J.; Rahavendran, S. V.; Skor, H.; Irvine, R.; Binford, S.; Tatlock, J.; Li, H.; Gonzalez, J.; Linton, A.; Patick, A. K.; Lewis, C. (23 March 2009). "Preclinical Characterization of PF-00868554, a Potent Nonnucleoside Inhibitor of the Hepatitis C Virus RNA-Dependent RNA Polymerase". Antimicrobial Agents and Chemotherapy 53 (6): 2544–52. doi:10.1128/AAC.01599-08.
- ↑ Jiao, P; Xue, W; Shen, Y; Jin, N; Liu, H (April 2014). "Understanding the Drug Resistance Mechanism of Hepatitis C Virus NS5B to PF-00868554 due to Mutations of the 423 Site: a Computational study". Molecular bioSystems 10 (4): 767–77. doi:10.1039/c3mb70498j. PMID 24452008.
- ↑ Beaulieu, PL (December 2010). "Filibuvir, a Non-nucleoside NS5B polymerase Inhibitor for the Potential Oral Treatment of Chronic HCV Infection". IDrugs: the Investigational Drugs Journal 13 (12): 938–48. PMID 21154154.
- ↑ "Pfizer Stops Developing Hepatitis C Drug". The Wall Street Journal. Dow Jones & Company, Inc. Retrieved 5 December 2015.
- ↑ Gentile, Ivan; Buonomo, Antonio Riccardo; Zappulo, Emanuela; Borgia, Guglielmo (February 2015). "Discontinued Drugs in 2012–2013: Hepatitis C Virus Infection". Expert Opinion on Investigational Drugs 24 (2): 239–51. doi:10.1517/13543784.2015.982274.
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