doi: 10.1021/jm00088a004.
HIV-1 protease inhibitors based on hydroxyethylene dipeptide isosteres: an investigation into the role of the P1' side chain on structure-activity
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- PMID: 1588552
- DOI: 10.1021/jm00088a004
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HIV-1 protease inhibitors based on hydroxyethylene dipeptide isosteres: an investigation into the role of the P1' side chain on structure-activity
J Med Chem.
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Abstract
A systematic investigation was undertaken to determine the role of the P1' sidechain in a series of hydroxyethylene isostere based inhibitors of HIV-1 protease. Substitution and homologation of the benzyl P1' side chain of the Phe-Phe isostere based pseudo peptides 1 (L-682,679) and 2 (L-685,434) with various heteroalkyl groups leads to a series of extremely potent inhibitors of the enzyme. Several examples of the most potent inhibitors were very effective in an ex vivo cell based viral spread assay using human H9 T-lymphocytes and the IIIb isolate of HIV-1. Compound 19 is 120 times more potent than 1 and 16 times more potent than 2 in inhibiting the spread of infection in this assay.
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