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Development of quinone analogues as dynamin GTPase inhibitors
Centre for Chemical Biology, Chemistry, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
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2014 (English)In: European Journal of Medicinal Chemistry, ISSN 0223-5234, E-ISSN 1768-3254, Vol. 85, 191-206 p.Article in journal (Refereed) Published
Abstract [en]

Virtual screening of the ChemDiversity and ChemBridge compound databases against dynamin I (dynI) GTPase activity identified 2,5-bis-(benzylamino)-1,4-benzoquinone 1 as a 273 ± 106 μM inhibitor. In silico lead optimization and focused library-led synthesis resulted in the development of four discrete benzoquinone/naphthoquinone based compound libraries comprising 54 compounds in total. Sixteen analogues were more potent than lead 1, with 2,5-bis-(4-hydroxyanilino)-1,4-benzoquinone (45) and 2,5-bis(4-carboxyanilino)-1,4-benzoquinone (49) the most active with IC50 values of 11.1 ± 3.6 and 10.6 ± 1.6 μM respectively. Molecular modelling suggested a number of hydrogen bonding and hydrophobic interactions were involved in stabilization of 49 within the dynI GTP binding site. Six of the most active inhibitors were evaluated for potential inhibition of clathrin-mediated endocytosis (CME). Quinone 45 was the most effective CME inhibitor with an IC50(CME) of 36 ± 16 μM.

Place, publisher, year, edition, pages
2014. Vol. 85, 191-206 p.
National Category
Medicinal Chemistry Organic Chemistry
URN: urn:nbn:se:uu:diva-232718DOI: 10.1016/j.ejmech.2014.06.070PubMedID: 25084145OAI: oai:DiVA.org:uu-232718DiVA: diva2:749224
Available from: 2014-09-23 Created: 2014-09-23 Last updated: 2014-09-24Bibliographically approved

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Odell, Luke R
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