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Evaluation of "norpeptides" as potential inhibitors of HIV-proteases
Bioorganic & Medicinal Chemistry
|January 1, 1994
Abstract:
Peptide mimics of substrates for HIV-proteases were prepared. These "norpeptides" are identical to a fragment of the HIV-polyprotein except that a crucial scissile bond was deleted, and an alpha,beta-disubstituted amino acid spans the P1 and P1 site. Thus all four stereoisomers of Leu psi[]Ala (i.e. H2NCH(CH2iPr)CH(Me)CO2H, 1) were incorporated into Ac-Ala-Arg-Val-Leu psi[]Ala-Glu-Ala-NH2 (all other residues being L-amino acids), and tested with respect to inhibition of HIV-1 and HIV-2 proteases.