Download MendeleyDiscovery of Potent Non-Nucleoside Inhibitors of Dengue Viral RNA-Dependent RNA Polymerase from a Fragment Hit Using Structure-Based Drug Design
Yokokawa, F., Nilar, S., Noble, C.G., Lim, S.P., Rao, R., Tania, S., Wang, G., Lee, G., Hunziker, J., Karuna, R., Manjunatha, U., Shi, P.Y., Smith, P.W.(2016) J Med Chem 59: 3935-3952
- PubMed: 26984786
- DOI: https://doi.org/10.1021/acs.jmedchem.6b00143
- Primary Citation of Related Structures:
5HMW, 5HMX, 5HMY, 5HMZ, 5HN0 - PubMed Abstract:
The discovery and optimization of non-nucleoside dengue viral RNA-dependent-RNA polymerase (RdRp) inhibitors are described. An X-ray-based fragment screen of Novartis' fragment collection resulted in the identification of a biphenyl acetic acid fragment 3, which bound in the palm subdomain of RdRp. Subsequent optimization of the fragment hit 3, relying on structure-based design, resulted in a >1000-fold improvement in potency in vitro and acquired antidengue activity against all four serotypes with low micromolar EC50 in cell-based assays. The lead candidate 27 interacts with a novel binding pocket in the palm subdomain of the RdRp and exerts a promising activity against all clinically relevant dengue serotypes.
Organizational Affiliation:
Novartis Institute for Tropical Diseases , 10 Biopolis Road, no. 05-01, Chromos, Singapore 138670, Singapore.
