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Development of broad-spectrum enterovirus antivirals based on quinoline scaffold.

Abstract：

:Non-polio enteroviruses such as enterovirus A71 (EV-A71), EV-D68, and coxsackievirus B3 (CVB3) are significant human pathogens with disease manifestations ranging from mild flu-like symptoms to more severe encephalitis, myocarditis, acute flaccid paralysis/myelitis, and even death. There is currently no effective antivirals to prevent or treat non-polio enterovirus infection. In this study, we report our progress in developing potent and broad-spectrum antivirals against these non-polio enteroviruses. Starting from our previously developed lead compounds that had potent antiviral activity against EV-D68, we synthesized 43 analogs and profiled their broad-spectrum antiviral activity against additional EV-D68, EV-A71, and CVB3 viruses. Promising candidates were also selected for mouse microsomal stability test to prioritize lead compounds for future in vivo mouse model studies. Collectively, this multi-parameter optimization process revealed a promising lead compound 6aw that showed single-digit to submicromolar EC50 values against two EV-D68 strains (US/KY and US/MO), two EV-A71 strains (Tainan and US/AK), and one CVB3 strain, with a high selectivity index. Encouragingly, 6aw was stable in mouse microsomes with a half-life of 114.7 min. Overall, 6aw represents one of the most potent broad-spectrum antiviral against non-polio enteroviruses, rendering it a promising lead candidate for non-polio enteroviruses with translational potential.

journal_name

Bioorg Chem

journal_title

Bioorganic chemistry

authors

Musharrafieh R,Kitamura N,Hu Y,Wang J

doi

10.1016/j.bioorg.2020.103981

subject

Has Abstract

pub_date

2020-08-01 00:00:00

pages

103981

eissn

0045-2068

issn

1090-2120

pii

S0045-2068(20)31278-5

journal_volume

101

pub_type

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