Synthesis and antiplasmodial evaluation of novel (4-aminobutyloxy)quinolines
摘要:
A variety of 5-, 6- and 8-(4-aminobutyloxy) quinolines as novel oxygen analogues of known 4- and 8-(4-aminobutylamino)quinoline antimalarial drugs was generated from hydroxyquinolines through a three-step approach with a rhodium-catalyzed hydroformylation as the key step. Antiplasmodial assays of these new quinolines revealed micromolar potency for all representatives against a chloroquine-sensitive strain of Plasmodium falciparum, and three compounds showed submicromolar activity against a chloroquine-resistant strain of P. falciparum with IC50-values ranging between 150 and 680 nM. (C) 2012 Elsevier Ltd. All rights reserved.
Antifungal assessment of eighteen 5-, 6- and 8-(4-aminobutyloxy)quinolines revealed a significant susceptibility of the tested fungi and yeast strains (Candida albicans, Rhodotorula bogoriensis, Aspergillus flavus and Fusarium solani) toward different halo-substituted 8-(4-aminobutyloxy)quinolines. The six most potent compounds displayed antifungal activities similar to those of established antifungal agents such as Amphotericin B, Fluconazole and Itraconazole, and one representative also showed a promising broad-spectrum antifungal profile. The introduction of an aminoalkoxy side chain at the 8-position of a halo-substituted quinoline core might thus provide a new class of lead structures in the search for novel antifungal agents. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis and antiplasmodial evaluation of novel (4-aminobutyloxy)quinolines
作者:Stéphanie Vandekerckhove、Christian Müller、Dieter Vogt、Carmen Lategan、Peter J. Smith、Kelly Chibale、Norbert De Kimpe、Matthias D’hooghe
DOI:10.1016/j.bmcl.2012.10.094
日期:2013.1
A variety of 5-, 6- and 8-(4-aminobutyloxy) quinolines as novel oxygen analogues of known 4- and 8-(4-aminobutylamino)quinoline antimalarial drugs was generated from hydroxyquinolines through a three-step approach with a rhodium-catalyzed hydroformylation as the key step. Antiplasmodial assays of these new quinolines revealed micromolar potency for all representatives against a chloroquine-sensitive strain of Plasmodium falciparum, and three compounds showed submicromolar activity against a chloroquine-resistant strain of P. falciparum with IC50-values ranging between 150 and 680 nM. (C) 2012 Elsevier Ltd. All rights reserved.