Discovery of Aminofurazan-azabenzimidazoles as Inhibitors of Rho-Kinase with High Kinase Selectivity and Antihypertensive Activity

Robert A. Stavenger, Haifeng Cui, Sarah E. Dowdell, Robert G. Franz, Dimitri E. Gaitanopoulos, Krista Goodman, Mark A. Hilfiker, Robert L. Ivy, Jack D. Leber, Joseph P. Marino,

Journal of Medicinal Chemistry · 2006 · 71 citations · 3 references

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Abstract

The discovery, proposed binding mode, and optimization of a novel class of Rho-kinase inhibitors are presented. Appropriate substitution on the 6-position of the azabenzimidazole core provided subnanomolar enzyme potency in vitro while dramatically improving selectivity over a panel of other kinases. Pharmacokinetic data was obtained for the most potent and selective examples and one (6n) has been shown to lower blood pressure in a rat model of hypertension.

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