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Synthesis and Biological Evaluation of Umifenovir Analogues as Anti-SARS-CoV-2 Agents.

ABSTRACT: The unprecedented novel coronavirus disease 2019 (COVID-19) pandemic is a threat to global health and the economy. Since the outbreak of COVID-19, great effort has been made to reposition existing drugs to shorten development timelines, in addition to vaccine development and drug discovery campaigns. Umifenovir is a broad-spectrum antiviral agent used to treat influenza in China and Russia and is currently undergoing clinical trials for the treatment of COVID-19. In this article, the synthesis of umifenovir analogues and their biological evaluation are reported. The inhibitory activities of analogues against the binding of the spike glycoprotein (S-protein) of the novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) to the ACE2 receptor, which is a possible mode of action for umifenovir to inhibit viral infection, were investigated.

SUBMITTER: Tanaka H

PROVIDER: S-EPMC9538379 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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Synthesis and Biological Evaluation of Umifenovir Analogues as Anti-SARS-CoV-2 Agents.

Tanaka Hiroaki H Miyagi Seiya S Yoshida Yusuke Y Lamb Justin Steven JS Chick Christian Nanga CN Luhata Lokadi Pierre LP Shibata Mizuho M Tanaka Eri E Suzuki Yumiko Y Usuki Toyonobu T

ChemistrySelect 20220809 30

The unprecedented novel coronavirus disease 2019 (COVID-19) pandemic is a threat to global health and the economy. Since the outbreak of COVID-19, great effort has been made to reposition existing drugs to shorten development timelines, in addition to vaccine development and drug discovery campaigns. Umifenovir is a broad-spectrum antiviral agent used to treat influenza in China and Russia and is currently undergoing clinical trials for the treatment of COVID-19. In this article, the synthesis o ...[more]

PMID: 36245851

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Project description:Diversely functionalized, fused aryl-alkyl ring systems hold a prominent position as well-established molecular frameworks for a variety of anti-cancer agents. The benzosuberene (6,7 fused, also referred to as dihydro-5H-benzo[7]annulene and benzocycloheptene) ring system has emerged as a valuable molecular core component for the development of inhibitors of tubulin assembly, which function as antiproliferative anti-cancer agents and, in certain cases, as vascular disrupting agents (VDAs). Both a phenolic-based analogue (known as KGP18, compound 39) and its corresponding amine-based congener (referred to as KGP156, compound 45), which demonstrate strong inhibition of tubulin assembly (low micromolar range) and potent cytotoxicity (picomolar range for KGP18 and nanomolar range for KGP156) are noteworthy examples of such benzosuberene-based compounds. In order to extend the structure-activity relationship (SAR) knowledge base related to benzosuberene anti-cancer agents, a series of eleven analogues (including KGP18) were prepared in which the methoxylation pattern on the pendant aryl ring as well as functional group incorporation on the fused aryl ring were varied. The synthetic approach to these compounds featured a sequential Wittig olefination, reduction, Eaton's reagent-mediated cyclization strategy to achieve the core benzosuberone intermediate, and represented a higher-yielding synthesis of KGP18 (which we prepared previously through a ring-expansion strategy). Incorporation of a fluorine or chlorine atom at the 1-position of the fused aryl ring or replacement of one of the methoxy groups with hydrogen (on the pendant aryl ring of KGP18) led to benzosuberene analogues that were both strongly inhibitory against tubulin assembly (IC50 approximately 1.0 μM) and strongly cytotoxic against selected human cancer cell lines (for example, GI50=5.47 nM against NCI-H460 cells with fluoro-benzosuberene analogue 37). A water-soluble phosphate prodrug salt of KGP18 (referred to as KGP265, compound 44) and a water-soluble serinamide salt (compound 48) of KGP156 were also synthesized and evaluated in this study.

Dataset Information

Synthesis and Biological Evaluation of Umifenovir Analogues as Anti-SARS-CoV-2 Agents.

Publications

Synthesis and Biological Evaluation of Umifenovir Analogues as Anti-SARS-CoV-2 Agents.

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