Compounds which are amino acid derivatives and have the formula ##STR1## in which R.sup.1 is hydrogen or methyl, R.sup.2 is ethyl, propyl or imidazol-4-yl, R.sup.3 is isobutyl, cyclohexylmethyl or benzyl, and A is defined as herein are useful as renin inhibitors.
Verbindung der Formel
worin R1, R2, R3, R4 und A die in Anspruch 1 angegebene Bedeutung haben, sowie pharmazeutisch verwendbare Salze davon besitzen Renin-inhibierende Eigenschaften und können demnach in Form pharmazeutischer Präparate als Arzneimittel verwendet werden. Sie können nach an sich bekannten Methoden hergestellt werden.
式中的化合物
其中 R1、R2、R3、R4 和 A 具有权利要求 1 中给出的含义,其药用盐具有抑制肾素的特性,因此可以以药物制剂的形式用作药物。它们可以通过本身已知的方法制备。
Nonpeptide angiotensin II receptor antagonists. 1. Synthesis and in vitro structure-activity relationships of 4-[[[(1H-pyrrol-1-ylacetyl)amino]phenyl]methyl]imidazole derivatives as angiotensin II receptor antagonists
作者:Ila Sircar、R. Thomas Winters、John Quin、Gina H. Lu、Terry C. Major、Robert L. Panek
DOI:10.1021/jm00064a007
日期:1993.6
A novel series of non-biphenylyltetrazole angiotensin II receptor antagonists which contain a 1H-pyrrol-1-ylacetyl residue in place of the benzoyl residue in EXP 6803 have been developed. The receptor binding activity of several members of this new series was in the 10(-8) M range, which was better than that of EXP 6803. Introduction of a carboxylic acid moiety at the 2-position of the pyrrole ring enhanced the in vitro binding affinity at the receptor by 10-fold. Compounds containing an acetic acid (18) or a propionic acid residue (20) at the 5-position of the imidazole were more potent than the carboxylic acid analogue (24). The binding IC50 of the most potent compound 20 was 22 nM. Compounds 18, 20, and 24 in their best fit conformations were manually overlayed on that of the template conformation of EXP 6803 and EXP 8623, respectively. The synthesis and structure-activity relationship data are described.
Kashima, Choji; Maruyama, Tatsuya; Fujioka, Yoko, Journal of the Chemical Society. Perkin transactions I, 1989, p. 1041 - 1046