Benzoxaborole Antimalarial Agents. Part 4. Discovery of Potent 6-(2-(Alkoxycarbonyl)pyrazinyl-5-oxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaboroles

doi:10.1021/acs.jmedchem.5b00678

Paper

Benzoxaborole Antimalarial Agents. Part 4. Discovery of Potent 6-(2-(Alkoxycarbonyl)pyrazinyl-5-oxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaboroles

Published Jun 11, 2015 · Yong-Kang Zhang, J. Plattner, E. Easom

Journal of Medicinal Chemistry

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26

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1

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Abstract

A series of 6-hetaryloxy benzoxaborole compounds was designed and synthesized for a structure–activity relationship (SAR) investigation to assess the changes in antimalarial activity which result from 6-aryloxy structural variation, substituent modification on the pyrazine ring, and optimization of the side chain ester group. This SAR study discovered highly potent 6-(2-(alkoxycarbonyl)pyrazinyl-5-oxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaboroles (9, 27–34) with IC50s = 0.2–22 nM against cultured Plasmodium falciparum W2 and 3D7 strains. Compound 9 also demonstrated excellent in vivo efficacy against P. berghei in infected mice (ED90 = 7.0 mg/kg).

In Vitro Study

Study Snapshot

6-hetaryloxy benzoxaborole compounds show potent antimalarial activity, with compounds 9 showing excellent in vivo efficacy against Plasmodium berghei in infected mice.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Benzoxaborole Antimalarial Agents. Part 4. Discovery of Potent 6-(2-(Alkoxycarbonyl)pyrazinyl-5-oxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaboroles

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References

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Fluoro-substituted benzoxaborole compounds show excellent antimalarial activity against Plasmodium falciparum, with boron being essential for this activity.

Citations

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