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Bioorg Med Chem Lett. 2012 Mar 15;22(6):2242-6. doi: 10.1016/j.bmcl.2012.01.095. Epub 2012 Feb 1.

Antidotes to anthrax lethal factor intoxication. Part 3: Evaluation of core structures and further modifications to the C2-side chain.

Author information

1
PanThera Biopharma, LLC, Aiea, HI 96701, USA.

Abstract

Four core structures capable of providing sub-nanomolar inhibitors of anthrax lethal factor (LF) were evaluated by comparing the potential for toxicity, physicochemical properties, in vitro ADME profiles, and relative efficacy in a rat lethal toxin (LT) model of LF intoxication. Poor efficacy in the rat LT model exhibited by the phenoxyacetic acid series (3) correlated with low rat microsome and plasma stability. Specific molecular interactions contributing to the high affinity of inhibitors with a secondary amine in the C2-side chain were revealed by X-ray crystallography.

PMID:
22342144
PMCID:
PMC3295836
DOI:
10.1016/j.bmcl.2012.01.095
[Indexed for MEDLINE]
Free PMC Article

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