Design, structure–activity relationship and in vivo efficacy of piperazine analogues of fenarimol as inhibitors of Trypanosoma cruzi
摘要:
A scaffold hopping exercise undertaken to expand the structural diversity of the fenarimol series of anti-Trypanosoma cruzi (T. cruzi) compounds led to preparation of simple 1-[phenyl(pyridin-3-yl)methyl]piperazinyl. analogues of fenarimol which were investigated for their ability to inhibit T. cruzi in vitro in a whole organism assay. A range of compounds bearing amide, sulfonamide, carbamate/carbonate and aryl moieties exhibited low nM activities and two analogues were further studied for in vivo efficacy in a mouse model of T. cruzi infection. One compound, the citrate salt of 37, was efficacious in a mouse model of acute T. cruzi infection after once daily oral dosing at 20, 50 and 100 mg/kg for 5 days. (C) 2013 Elsevier Ltd. All rights reserved.
Analogues of Fenarimol Are Potent Inhibitors of Trypanosoma cruzi and Are Efficacious in a Murine Model of Chagas Disease
摘要:
We report the discovery of nontoxic fungicide fenarimol (1) as an inhibitor of Trypanosoma cruzi (T. cruzi), the causative agent of Chagas disease, and the results of structure-activity investigations leading to potent analogues with low nM IC(50)s in a T. cruzi whole cell in vitro assay. Lead compounds suppressed blood parasitemia to virtually undetectable levels after once daily oral dosing in mouse models of T. cruzi infection. Compounds are chemically tractable, allowing rapid optimization of target biological activity and drug characteristics. Chemical and biological studies undertaken in the development of the fenarimol series toward the goal of delivering a new drug candidate for Chagas disease are reported.
Design, structure–activity relationship and in vivo efficacy of piperazine analogues of fenarimol as inhibitors of Trypanosoma cruzi
作者:Martine Keenan、Paul W. Alexander、Hugo Diao、Wayne M. Best、Andrea Khong、Maria Kerfoot、R. C. Andrew Thompson、Karen L. White、David M. Shackleford、Eileen Ryan、Alison D. Gregg、Susan A. Charman、Thomas W. von Geldern、Ivan Scandale、Eric Chatelain
DOI:10.1016/j.bmc.2013.01.050
日期:2013.4
A scaffold hopping exercise undertaken to expand the structural diversity of the fenarimol series of anti-Trypanosoma cruzi (T. cruzi) compounds led to preparation of simple 1-[phenyl(pyridin-3-yl)methyl]piperazinyl. analogues of fenarimol which were investigated for their ability to inhibit T. cruzi in vitro in a whole organism assay. A range of compounds bearing amide, sulfonamide, carbamate/carbonate and aryl moieties exhibited low nM activities and two analogues were further studied for in vivo efficacy in a mouse model of T. cruzi infection. One compound, the citrate salt of 37, was efficacious in a mouse model of acute T. cruzi infection after once daily oral dosing at 20, 50 and 100 mg/kg for 5 days. (C) 2013 Elsevier Ltd. All rights reserved.
Analogues of Fenarimol Are Potent Inhibitors of Trypanosoma cruzi and Are Efficacious in a Murine Model of Chagas Disease
作者:Martine Keenan、Michael J. Abbott、Paul W. Alexander、Tanya Armstrong、Wayne M. Best、Bradley Berven、Adriana Botero、Jason H. Chaplin、Susan A. Charman、Eric Chatelain、Thomas W. von Geldern、Maria Kerfoot、Andrea Khong、Tien Nguyen、Joshua D. McManus、Julia Morizzi、Eileen Ryan、Ivan Scandale、R. Andrew Thompson、Sen Z. Wang、Karen L. White
DOI:10.1021/jm2015809
日期:2012.5.10
We report the discovery of nontoxic fungicide fenarimol (1) as an inhibitor of Trypanosoma cruzi (T. cruzi), the causative agent of Chagas disease, and the results of structure-activity investigations leading to potent analogues with low nM IC(50)s in a T. cruzi whole cell in vitro assay. Lead compounds suppressed blood parasitemia to virtually undetectable levels after once daily oral dosing in mouse models of T. cruzi infection. Compounds are chemically tractable, allowing rapid optimization of target biological activity and drug characteristics. Chemical and biological studies undertaken in the development of the fenarimol series toward the goal of delivering a new drug candidate for Chagas disease are reported.