The total synthesis of a trifluoromethyl (Tfm) analogue of the aspartate protease inhibitor Pepstatin has been accomplished via incorporation of two alpha-Tfm-amino beta-hydroxy peptide isosteres instead of the natural statine units. The title compound as well as several Tfm-substituted precursors did not show anti-HIV activity. (C) 2000 Elsevier Science Ltd. All rights reserved.
Total synthesis of a pepstatin analog incorporating two trifluoromethyl hydroxymethylene isosteres (Tfm-GABOB) and evaluation of Tfm-GABOB containing peptides as inhibitors of HIV-1 protease and MMP-9
We describe the asymmetric total synthesis of a trifluoromethyl (Tfm) analogue of the aspartate proteaseinhibitor pepstatin incorporating two γ-Tfm-γ-amino-β-hydroxybutyric acid (γ-Tfm-GABOB) units instead of the natural statine units. The title compound as well as several Tfm-substituted precursors were tested as inhibitors of HIV-1protease and Gelatinase B (MMP-9)