Inhibition of BACE-1 by Hydroxyethylsulfide, Hydroxyethylamine and Hydroxyethylurea Isosteric Replacements

Title: Inhibition of BACE-1 by Hydroxyethylsulfide, Hydroxyethylamine and Hydroxyethylurea Isosteric Replacements

Volume: 2 Issue: 2

Author(s): L. Rizzi and S. Romeo

Affiliation:

Keywords: bace-1, secretase, memapsin-2, inhibition, transition state analogues, pseudopeptides

Abstract: New inhibitors of the ß-site amyloid precursor protein cleaving enzyme (BACE-1) are described. The hydroxyethyl transition state isostere of GT1017 has been replaced by the hydroxyethylamine (HEA), the hydroxyethylsulfide or the hydroxyethylurea groups. Biological evaluation has shown that the HEA analogue, obtained as epimeric mixture, inhibited BACE-1 with an IC50=0.12μM. Stereoselective synthesis showed surprisingly that the most active stereoisomer was the (R)-HEA transition state analogue with an IC50=0.014μM.

Cite this article as:

Rizzi L. and Romeo S., Inhibition of BACE-1 by Hydroxyethylsulfide, Hydroxyethylamine and Hydroxyethylurea Isosteric Replacements, Letters in Drug Design & Discovery 2005; 2 (2) . https://dx.doi.org/10.2174/1570180053175142