2'-β-C-Ethynyladenosine

2'-?-C-Ethynyladenosine is a synthetic nucleoside analog that functions as a potent inhibitor of hepatitis C virus (HCV) replication by targeting the viral RNA-dependent RNA polymerase, NS5B; it inhibits HCV subgenomic replicon replication and NS5B-catalyzed RNA synthesis with half-maximal inhibitory concentration (IC50) values of 0.3 micromolar and 1.9 micromolar, respectively, and also demonstrates potent inhibitory activity against Leishmania RNA Virus 1 (LRV1) in species such as Leishmania guyanensis (Lgy) and Leishmania braziliensis.