- Synthesis and biological evaluation of novel flexible nucleoside analogues that inhibit flavivirus replication in vitro
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Flaviviruses, such as Dengue (DENV) and Zika (ZIKV) viruses, represent a severe health burden. There are currently no FDA-approved treatments, and vaccines against most flaviviruses are still lacking. We have developed several flexible analogues (“fleximers”) of the FDA-approved nucleoside Acyclovir that exhibit activity against various RNA viruses, demonstrating their broad-spectrum potential. The current study reports activity against DENV and Yellow Fever Virus (YFV), particularly for compound 1. Studies to elucidate the mechanism of action suggest the flex-analogue triphosphates, especially 1-TP, inhibit DENV and ZIKV methyltransferases, and a secondary, albeit weak, effect on the DENV RNA-dependent RNA polymerase was observed at high concentrations. The results of these studies are reported herein.
- Thames, Joy E.,Waters, Charles D.,Valle, Coralie,Bassetto, Marcella,Aouadi, Wahiba,Martin, Baptiste,Selisko, Barbara,Falat, Arissa,Coutard, Bruno,Brancale, Andrea,Canard, Bruno,Decroly, Etienne,Seley-Radtke, Katherine L.
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- HETEROCYCLIC ANTIVIRAL COMPOUNDS
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Compounds having the formula I wherein wherein R1, R2, R3, R4, X1, X2, X3 and X4 and as defined herein are Hepatitis C virus NS5b polymerase inhibitors. Also disclosed are compositions and methods for treating an HCV infection and inhibiting HCV replication.
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Page/Page column 49-50
(2010/12/29)
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- Compounds and Uses Thereof
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This invention relates to novel compounds having the structural formula I below: and their pharmaceutically acceptable salts, tautomers or in vivo-hydrolysable precursors, compositions and methods of use thereof. These novel compounds provide a treatment or prophylaxis of anxiety disorders, cognitive disorders, and/or mood disorders.
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Page/Page column 86
(2008/06/13)
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- Hydroboronation process
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The invention relates to processes for the synthesis of aryl or alkene borates which comprises reacting: (i) an olefinic compound having a halogen or halogen-like substituent in a vinylic substitution position, or (ii) an aromatic ring having a halogen or halogen-like substituent in a ring substitution position, with a disubstituted monohydroborane in the presence of a Group 8-11 metal catalyst. The invention also relates to the use of these borates in coupling reactions. The invention further relates to certain disubstituted monohydroboranes and aryl or alkene borates.
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Page column 61
(2010/02/05)
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