Article ID Journal Published Year Pages File Type
1376006 Bioorganic & Medicinal Chemistry Letters 2005 4 Pages PDF
Abstract

Excessive calpain activations contribute to serious cellular damage and have been found in many pathological conditions. Novel chromone carboxamides derived from ketoamides were prepared and evaluated for μ-calpain inhibition. Among synthesized, compound 2i was the most potent calpain inhibitor with an IC50 value of 0.24 ± 0.11 μM comparable to the activity of peptide aldehyde calpain inhibitor MDL 28,170. Furthermore, compound 2i showed higher selectivity for μ-calpain over two related cysteine proteases cathepsin B and cathepsin L, suggesting the chromone ring as a good scaffold for selective μ-calpain inhibitors.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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