tetano
Editor, Senior Moderator
J Med Chem. 2018 Oct 26. doi: 10.1021/acs.jmedchem.8b01065. [Epub ahead of print]
[h=1]Structure-Based Optimization of N-Substituted Oseltamivir Derivatives as Potent Anti-influenza A Virus Agents with Significantly Improved Potency against Oseltamivir-Resistant N1-H274Y Variant.[/h] Zhang J, Murugan NA, Tian Y, Bertagnin C, Fang Z, Kang D, Kong X, Jia H, Sun Z, Jia R, Gao P, Poongavanam V, Loregian A, Xu W, Ma X, Ding X, Huang B, Zhan P, Liu X.
[h=3]Abstract[/h] Due to the emergence of highly pathogenic and oseltamivir-resistant influenza viruses, there is an urgent need to develop new anti-influenza agents. Herein, five sub-series of oseltamivir derivatives were designed and synthesized to improve their activity towards drug-resistant viral strains by further exploiting the 150-cavity in the neuraminidases (NAs). The bioassay results showed that compound 21h exhibited antiviral activities similar to or better than those of oseltamivir carboxylate (OSC) against H5N1, H5N2, H5N6 and H5N8. Besides, 21h was 5- to 86-fold more potent than OSC toward N1, N8, and N1-H274Y mutant NAs in the inhibitory assays. Computational studies provided a plausible rationale for the high potency of 21h against group-1 and N1-H274Y NAs. In addition, 21h demonstrated acceptable oral bioavailability, low acute toxicity and potent antiviral activity in vivo, and high metabolic stability. Overall, above excellent profiles make 21h a promising drug candidate for the treatment of influenza virus infection.
PMID: 30365885 DOI: 10.1021/acs.jmedchem.8b01065
[h=1]Structure-Based Optimization of N-Substituted Oseltamivir Derivatives as Potent Anti-influenza A Virus Agents with Significantly Improved Potency against Oseltamivir-Resistant N1-H274Y Variant.[/h] Zhang J, Murugan NA, Tian Y, Bertagnin C, Fang Z, Kang D, Kong X, Jia H, Sun Z, Jia R, Gao P, Poongavanam V, Loregian A, Xu W, Ma X, Ding X, Huang B, Zhan P, Liu X.
[h=3]Abstract[/h] Due to the emergence of highly pathogenic and oseltamivir-resistant influenza viruses, there is an urgent need to develop new anti-influenza agents. Herein, five sub-series of oseltamivir derivatives were designed and synthesized to improve their activity towards drug-resistant viral strains by further exploiting the 150-cavity in the neuraminidases (NAs). The bioassay results showed that compound 21h exhibited antiviral activities similar to or better than those of oseltamivir carboxylate (OSC) against H5N1, H5N2, H5N6 and H5N8. Besides, 21h was 5- to 86-fold more potent than OSC toward N1, N8, and N1-H274Y mutant NAs in the inhibitory assays. Computational studies provided a plausible rationale for the high potency of 21h against group-1 and N1-H274Y NAs. In addition, 21h demonstrated acceptable oral bioavailability, low acute toxicity and potent antiviral activity in vivo, and high metabolic stability. Overall, above excellent profiles make 21h a promising drug candidate for the treatment of influenza virus infection.
PMID: 30365885 DOI: 10.1021/acs.jmedchem.8b01065