Renin inhibitors. Substitution of the leucyl residues of Leu-Leu-Val-Phe-OCH3 with 3-amino-2-hydroxy-5-methylhexanoic acid.

Abstract:

:The 2S,3S and 2R,3S diastereoisomers of the hydroxy amino acid 3-amino-2-hydroxy-5-methylhexanoic acid (AHMHA) were synthesized and substituted for the leucyl residues of Leu-Leu-Val-Phe-OCH3 to yield the following analogues: AHMHA-Leu-Val-Phe-OCH3, AHMHA-Val-Phe-OCH3, and Leu-AHMHA-Val-Phe-OCH3. These analogues were tested in vitro for their ability to inhibit human amniotic renin. All of the analogues were found to inhibit renin to some extent with inhibitory constants in the range of 10(-3) to 10(-4) M. The analogues AHMHA-Leu-Val-Phe-OCH3 and AHMHA-Val-Phe-OCH3 exhibited competitive inhibition when the 2S,3S isomer of AHMHA was employed and noncompetitive kinetics when the 2R,3S isomer of AHMHA was used. For the Leu-AHMHA-Val-Phe-OCH3 analogues, competitive kinetics were observed regardless of the isomer of AHMHA employed. These latter analogues also proved to be the most active in the above series.

journal_name

J Med Chem

authors

Johnson RL

doi

10.1021/jm00347a024

subject

Has Abstract

pub_date

1982-05-01 00:00:00

pages

605-10

issue

5

eissn

0022-2623

issn

1520-4804

journal_volume

25

pub_type

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