Discovery of novel dialkyl substituted thiophene inhibitors of HCV by in silico screening of the NS5B RdRp |
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Authors: | Louise-May Shirley Yang Wengang Nie Xingtie Liu Dongmei Deshpande Milind S Phadke Avinash S Huang Mingjun Agarwal Atul |
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Institution: | Achillion Pharmaceuticals, 300 George Street, New Haven, CT 06511, USA. |
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Abstract: | A novel 5,4-dialkyl substituted thiophene was discovered by in silico screening of the 3D polymerase crystal structure (1GX6) that demonstrated single digit micromolar HCV inhibition activity in the replicon assay and dose-dependent inhibition in the replicase complex assay. Subsequently, SAR was explored with a small set of dialkyl and tetrahydro-benzo thiophenes. Since these thiophenes inhibit synthesis of both, single- and double-stranded RNAs, their mechanism of action is distinct from other known HCV inhibitors. |
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