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Divergent Structure-Activity Relationships of Structurally Similar Acetylcholinesterase Inhibitors
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen.
Swedish Defense Research Agency, CBRN Defense and Security, Umeå.
Swedish Defense Research Agency, CBRN Defense and Security, Umeå.
Swedish Defense Research Agency, CBRN Defense and Security, Umeå.
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2013 (engelsk)Inngår i: Journal of Medicinal Chemistry, ISSN 0022-2623, E-ISSN 1520-4804, Vol. 56, nr 19, s. 7615-7624Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The molecular interactions between the enzyme acetylcholinesterase (AChE) and two compound classes consisting of N-[2-(diethylamino)ethyl]benzenesulfonamides and N-[2-(diethylamino)ethyl]benzenemethanesulfonamides have been investigated using organic synthesis, enzymatic assays, X-ray crystallography, and thermodynamic profiling. The inhibitors' aromatic properties were varied to establish structure activity relationships (SAR) between the inhibitors and the peripheral anionic site (PAS) of AChE. The two structurally similar compound classes proved to have distinctly divergent SARs in terms of their inhibition capacity of AChE. Eight X-ray structures revealed that the two sets have different conformations in PAS. Furthermore, thermodynamic profiles of the binding between compounds and AChE revealed class-dependent differences of the entropy/enthalpy contributions to the free energy of binding. Further development of the entropy-favored compound class resulted in the synthesis of the most potent inhibitor and an extension beyond the established SARs. The divergent SARs will be utilized to develop reversible inhibitors of AChE into reactivators of nerve agent-inhibited AChE.

sted, utgiver, år, opplag, sider
American Chemical Society (ACS), 2013. Vol. 56, nr 19, s. 7615-7624
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Identifikatorer
URN: urn:nbn:se:umu:diva-83903DOI: 10.1021/jm400990pISI: 000326367100013OAI: oai:DiVA.org:umu-83903DiVA, id: diva2:678149
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Swedish Research CouncilTilgjengelig fra: 2013-12-11 Laget: 2013-12-10 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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Andersson, C. DavidBerg, LottaEngdahl, CeciliaQian, WeixingLinusson, Anna

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