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Title

Synthesis and antiprotozoal activity of n -alkoxy analogues of the trypanocidal lead compound 4,4′-bis(imidazolinylamino)diphenylamine with improved human blood-brain barrier permeability

AuthorsNieto, Lidia ; Mascaraque, Ainhoa ; Miller, F.; Glacial, F.; Ríos Martínez, Carlos H. ; Kaiser, M.; Brun, R.; Dardonville, Christophe
Issue Date2011
PublisherAmerican Chemical Society
CitationJournal of Medicinal Chemistry 54: 485- 494 (2011)
AbstractTo improve the blood-brain barrier permeability of the trypanocidal lead compound 4,4′-bis(imidazolinylamino)diphenylamine (1), five N-alkoxy analogues were synthesized from bis(4-isothiocyanatophenyl)amine and N-alkoxy-N-(2-aminoethyl)-2-nitrobenzenesulfonamides following successive chemical reactions in just one reactor (one-pot procedure). This involved: (a) formation of a thiourea intermediate, (b) removal of the amine protecting groups, and (c) intramolecular cyclization. The blood-brain barrier permeability of the compounds determined in vitro by transport assays through the hCMEC/D3 human cell line, a well-known and characterized human cellular blood-brain barrier model, showed that the N-hydroxy analogue 16 had enhanced blood-brain barrier permeability compared with the unsubstituted lead compound. Moreover, this compound displayed low micromolar IC50 against Trypanosoma brucei rhodesiense and Plasmodium falciparum and moderate activity by intraperitoneal administration in the STIB900 murine model of acute sleeping sickness. © 2010 American Chemical Society.
Publisher version (URL)http://dx.doi.org/10.1021/jm101335q
URIhttp://hdl.handle.net/10261/83027
DOI10.1021/jm101335q
Identifiersdoi: 10.1021/jm101335q
issn: 0022-2623
e-issn: 1520-4804
Appears in Collections:(IQM) Artículos
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