Heterocyclic HIV-Protease Inhibitors

Title:Heterocyclic HIV-Protease Inhibitors

Volume: 20 Issue: 30

Author(s): C. Calugi, A. Guarna and A. Trabocchi

Affiliation:

• Department of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy.,Italy

Keywords: Amino acid, peptidomimetic, small molecule, enzyme inhibition, infectious disease.

Abstract: In the panorama of HIV protease inhibitors (HIV PIs), many efforts have been devoted to the development of new compounds with reduced peptidic nature in order to improve pharmacokinetics and pharmacodynamics features. The introduction of cyclic scaffolds in the design of new chemical entities reduces flexibility and affords more rigid inhibitors. Specifically, common dipeptide isosteres are replaced by a central cyclic scaffold designed to address the key interactions with catalytic aspartic acids and residues belonging to the flap region of the active site. The current interest in cyclic chemotypes addressing key interactions of HIV protease is motivated by the different nature of interactions formed with the enzyme, although maintaining key structural resemblance to a peptide substrate, hopefully giving rise to novel HIV-1 PIs displaying an improved profile towards multidrug resistant strains. This approach has been demonstrated for Tipranavir, which is a potent FDA approved HIV-1 PI representing the most famous example of heterocyclic aspartic protease inhibitors.

Cite this article as:

Calugi C., Guarna A. and Trabocchi A., Heterocyclic HIV-Protease Inhibitors, Current Medicinal Chemistry 2013; 20(30) . https://dx.doi.org/10.2174/09298673113209990135