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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Novel orally active antimalarial thiazoles
Journal of Medicinal Chemistry, Volume 54, No. 21, Year 2011
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Description
An aminomethylthiazole pyrazole carboxamide lead 3 with good in vitro antiplasmodial activity [IC 50: 0.08 μM (K1, chloroquine and multidrug resistant strain) and 0.07 μM (NF54, chloroquine sensitive strain)] and microsomal metabolic stability was identified from whole cell screening of a SoftFocus kinase library. Compound 3 also exhibited in vivo activity in the P. berghei mouse model at 4 × 50 mg/kg administration via the oral route, showing 99.5% activity and 9 days survival and showed low in vitro cytotoxicity. Pharmacokinetic studies in rats revealed good oral bioavailability (51% at 22 mg/kg) with a moderate rate of absorption, reasonable half-life (t 1/2 3 h), and high volume of distribution with moderately high plasma and blood clearance after IV administration. Toward toxicity profiling, 3 exhibited moderate potential to inhibit CYP1A2 (IC 50 = 1.5 μM) and 2D6 (IC 50 = 0.4 μM) as well as having a potential hERG liability (IC 50 = 3.7 μM). © 2011 American Chemical Society.
Authors & Co-Authors
Gonzàlez Cabrera, Diego
South Africa, Cape Town
University of Cape Town
Douelle, Frederic
South Africa, Cape Town
University of Cape Town
Feng, Tzu Shean
South Africa, Cape Town
University of Cape Town
Nchinda, Aloysius T.
South Africa, Cape Town
University of Cape Town
Younis, Yassir
South Africa, Cape Town
University of Cape Town
White, Karen L.
Australia, Melbourne
Monash University, Centre for Drug Candidate Optimisation
Wu, Quoc
Australia, Melbourne
Monash University, Centre for Drug Candidate Optimisation
Ryan, Eileen
Australia, Melbourne
Monash University, Centre for Drug Candidate Optimisation
Burrows, Jeremy Nicholas
Switzerland, Geneve
Icc
Waterson, David
Switzerland, Geneve
Icc
Witty, Michael J.
Switzerland, Geneve
Icc
Wittlin, Sergio
Switzerland, Allschwil
Swiss Tropical and Public Health Institute Swiss Tph
Switzerland, Basel
Universitat Basel
Charman, Susan A.
Australia, Melbourne
Monash University, Centre for Drug Candidate Optimisation
Chibale, Kelly
South Africa, Cape Town
University of Cape Town
Statistics
Citations: 14
Authors: 14
Affiliations: 5
Identifiers
Doi:
10.1021/jm201108k
ISSN:
00222623
e-ISSN:
15204804
Research Areas
Health System And Policy
Noncommunicable Diseases