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Arzneimittelforschung. 1990 Apr;40(4):407-13.

Synthesis and angiotensin converting enzyme inhibitory activity of N-carboxymethyldipeptides with omega-(4-piperidyl)alkyl group.

Author information

  • 1Central Research Laboratories, Asahi Breweries, Ltd., Tokyo, Japan.

Abstract

The synthesis of a series of novel, potent angiotensin converting enzyme (ACE) inhibitors containing 1(S)-carboxy-omega-(4-piperidyl)alkyl group at the N-terminal of the dipeptide is described. These 1-carboxy-omega-(4-piperidyl)alkyl derivatives possess greater or equivalent in vitro potency and in vivo efficacy than captopril and enalapril. The length (n) of the carbon chain in the omega-(4-piperidyl)alkyl moiety was varied from two to six to investigate the optimal structure for long-acting ACE inhibitors. 1-[N-[1(S)-Carboxy-6-(4- piperidyl)hexyl]-L-alanyl]-(2a,3a beta, 7a beta)-octahydro- 1H-indole-2-carboxylic acid (9b), the most potent member of the series, had an in vivo area under the curve (AUC) of 685, which was calculated by the inhibition of angiotensin I-induced pressor response vs. time curves (0 to 8 h) after p.o. administration.

PMID:
2162675
[PubMed - indexed for MEDLINE]
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