Facile incorporation of urea pseudopeptides into protease substrate analogue inhibitors

被引:42
作者
Myers, AC [1 ]
Kowalski, JA [1 ]
Lipton, MA [1 ]
机构
[1] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA
关键词
peptide analogue protease inhibitor;
D O I
10.1016/j.bmcl.2004.07.092
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
A new procedure that employs a one-pot, oxidative Hofmann rearrangement to incorporate a urea linkage into peptide backbones is detailed herein. This methodology was used to replace the scissile peptide bonds of [Leu(5)]enkephalin and a hexapeptide HIV-1 protease substrate. The [Leu(5)]enkephalin analogue was found to inhibit cleavage of hippurylhistidylleucine (HHL) by porcine kidney angiotensin-converting enzyme (PK-ACE) with a 0.88 mM IC50 value, comparable to the Michaelis constant of [Leu(5)]enkephalin with the same enzyme. The HIV-1 protease substrate analogue was shown to inhibit HIV-1 protease with an IC50 = 34muM. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:5219 / 5222
页数:4
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