438220-85-0Relevant articles and documents
Optimization of small-molecule inhibitors of influenza virus polymerase: From thiophene-3-carboxamide to polyamido scaffolds
Lepri, Susan,Nannetti, Giulio,Muratore, Giulia,Cruciani, Gabriele,Ruzziconi, Renzo,Mercorelli, Beatrice,Palù, Giorgio,Loregian, Arianna,Goracci, Laura
, p. 4337 - 4350 (2014/06/09)
Influenza virus infections represent a serious concern to public health, being characterized by high morbidity and significant mortality. To date, compounds targeting the viral ion-channel M2 or the viral neuraminidase are the drugs available for treatment of influenza, but the emergence of drug-resistant viral mutants renders the search for novel targets and their possible inhibitors a major priority. Recently, we demonstrated that the viral RNA-dependent RNA polymerase (RdRP) complex can be an optimal target of protein-protein disruption by small molecules, with thiophene-3-carboxamide derivatives emerging as promising candidates for the development of new anti-influenza drugs with broad-spectrum activity. Here, we report a further dissection of the thiophene-3-carboxamide structure. By using a GRID molecular interaction field (MIF)-based scaffold-hopping approach, more potent and nontoxic polyamido derivatives were identified, highlighting a new space in the chemical variability of RdRP inhibitors. Finally, a possible pharmacophoric model highlighting the key features required for RdRP inhibition is proposed.
