α,β-Unsaturated N-Acylpyrrole Peptidyl Derivatives: New Proteasome Inhibitors
journal contributionposted on 09.09.2010, 00:00 by Anna Baldisserotto, Valeria Ferretti, Federica Destro, Christian Franceschini, Mauro Marastoni, Riccardo Gavioli, Roberto Tomatis
Because of the encouraging results obtained using vinyl ester derivatives, we synthesized and tested a novel series of peptide-based proteasome inhibitors bearing a new pharmacophore unit at the C-terminal. N-Acylpyrrole moiety is a potential substrate for Michael addition by catalytic threonine. Several analogues have demonstrated a selective inhibition of the multicatalytic complex β1 subunits, the capacity to permeate cellular membrane, and good pharmacokinetics properties.