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J Med Chem. 1987 Oct;30(10):1853-7.

Renin inhibitors. Statine-containing tetrapeptides with varied hydrophobic carboxy termini.

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Merck Sharp & Dohme Research Laboratories, West Point, Pennsylvania 19486.


A series of statine-containing tetrapeptides, systematically modified at the carboxy terminus with various hydrophobic aromatic groups, is described. These compounds were tested in vitro for their ability to inhibit porcine, human plasma, and purified human kidney renins. These analogues help to define optimal binding aspects in a region of the enzyme that appears to be specific for spatial arrangement of aromatic groups. Replacement of the metabolically labile Phe amide with nonpeptidal groups proved possible while achieving inhibitory potency in the nanomolar range vs. porcine kidney renin. For the compounds 6i, 6m, and 6o, a large discrepancy in potency between the human plasma and the purified human kidney renin assays was observed. This disparity does not appear to be a consequence of a previously proposed plasma binding component.

[Indexed for MEDLINE]

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