Discovery of α,γ-Diketo Acids as Potent Selective and Reversible Inhibitors of Hepatitis C Virus NS5b RNA-Dependent RNA Polymerase
α,γ-Diketo acids (DKA) were discovered from screening as selective and reversible inhibitors of hepatitis C virus NS5b RNA-dependent RNA polymerase. The diketo acid moiety proved essential for activity, while substitution on the γ position was necessary for selectivity and potency. Optimization led to the identification of a DKA inhibitor of NS5b polymerase with IC50 = 45 nM, one of the most potent HCV NS5b polymerase inhibitors reported.
Summa, Vincenzo,Petrocchi, Alessia,Pace, Paola,Matassa, Victor G.,De Francesco, Raffaele,Altamura, Sergio,Tomei, Licia,Koch, Uwe,Neuner, Philippe
Aryl β-diketo acids (ADK) comprise a general class of potent HIV-1 integrase (IN) inhibitors, which can exhibit selective inhibition of strand transfer reactions in extracellular recombinant IN assays and provide potent antiviral effects in HIV-infected cells. Recent studies have shown that polycyclic aryl or aryl rings bearing aryl-containing substituents are components of potent members of this class. Reported herein is the first use of azido functionality as an aryl replacement in β-diketo acid IN inhibitors. The ability of azido-containing inhibitors to exhibit potent inhibition of IN and antiviral protection in HIV-infected cells, renders the azide group of potential value in the further development of ADK-based IN inhibitors.
Zhang, Xuechun,Pais, Godwin C.G.,Svarovskaia, Evguenia S.,Marchand, Christophe,Johnson, Allison A.,Karki, Rajeshri G.,Nicklaus, Marc C.,Pathak, Vinay K.,Pommier, Yves,Burke Jr., Terrence R.
p. 1215 - 1219
(2007/10/03)
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