Galidesivir triphosphate is a substrate for viral RNA-dependent RNA polymerase (RDRP), resulting in termination of viral RNA replication and thus serves as an antiviral. Galidesivir triphosphate inhibits HCVNS5B RNA polymerase activity and protects mice against Ebola. Galidesivir triphosphate (Immucillin-A triphosphate) is converted by the prodrug Galidesivir.
MK-3281 is a potent, orally bioavailable hepatitis C virus NS5Bpolymerase finger-loop inhibitor. It is also an inhibitor of attractive molecular properties with good potency in HCV subgenomic replication trials and suitable for clinical candidates.
6-Hydroxypyridin-3-ylboronic acid is a heterocyclic building block.1,2It has been used in the synthesis of non-nucleoside inhibitors of hepatitis C virus (HCV) RNA-dependent RNA polymerase nonstructural protein 5B (NS5B).16-Hydroxypyridin-3-ylboronic acid has also been used in the synthesis of mammalian target of rapamycin (mTOR) inhibitors.2 1.Hendricks, R.T., Spencer, S.R., Blake, J.F., et al.3-Hydroxyisoquinolines as inhibitors of HCVNS5b RNA-dependent RNA polymeraseBioorg. Med. Chem. Lett.19(2)410-414(2009) 2.Verheijen, J.C., Richard, D.J., Curran, K., et al.Discovery of 4-morpholino-6-aryl-1H-pyrazolo[3,4-d]pyrimidines as highly potent and sselective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR): Optimization of the 6-aryl substituentJ. Med. Chem.52(24)8010-8024(2009)