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Design, synthesis, and biological evaluation of potent thiosemicarbazone based cathepsin L inhibitors. | LitMetric

AI Article Synopsis

Article Abstract

A small library of 36 functionalized benzophenone thiosemicarbazone analogs has been prepared by chemical synthesis and evaluated for their ability to inhibit the cysteine proteases cathepsin L and cathepsin B. Inhibitors of cathepsins L and B have the potential to limit or arrest cancer metastasis. The six most active inhibitors of cathepsin L (IC50<85 nM) in this series incorporate a meta-bromo substituent in one aryl ring along with a variety of functional groups in the second aryl ring. These six analogs are selective for their inhibition of cathepsin L versus cathepsin B (IC50>10,000 nM). The most active analog in the series, 3-bromophenyl-2'-fluorophenyl thiosemicarbazone 1, also efficiently inhibits cell invasion of the DU-145 human prostate cancer cell line.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7125537PMC
http://dx.doi.org/10.1016/j.bmcl.2009.12.090DOI Listing

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