申请人:G. D. Searle & Co.
公开号:US05217985A1
公开(公告)日:1993-06-08
Renal-selective compounds are described which, in one embodiment, are prodrugs preferentially converted in the kidney to compounds capable of blocking angiotensin II (AII) receptors. These prodrugs are conjugates formed from two components, namely, a first component provided by an AII antagonist compound and a second component which is capable of being cleaved from the first component when both components are chemically linked within the conjugate. The two components are chemically linked by a bond which is cleaved selectively in the kidney, for example, by an enzyme. The liberated AII antagonist compound is then available to block AII receptors within the kidney. Conjugates of particular interest are glutamyl derivatives of biphenylmethyl 1H-substituted-1,2,4-triazole compounds, of which N-acetylglutamic acid, 5-[[4'-[(3,5-dibutyl-1H-1,2,4-triazol-1-yl)methyl][1,1'-biphenyl]-2-yl]]ca rbonylhydrazide, (shown below) is an example: ##STR1##
本文描述了一种肾脏选择性化合物,其中,在一种实施例中,这些前药优先在肾脏中转化为能够阻断血管紧张素II(AII)受体的化合物。这些前药是由两个组分形成的结合物,即由AII拮抗剂化合物提供的第一组分和当两个组分在结合物中化学连接时能够被剪切的第二组分。两个组分通过一种键化学连接,该键在肾脏中被选择性地剪切,例如,通过酶。释放的AII拮抗剂化合物然后可用于阻断肾脏内的AII受体。特别感兴趣的结合物是双苯甲基1H-取代-1,2,4-三唑化合物的谷氨酰衍生物,其中N-乙酰谷氨酸,5-[[4'-[(3,5-二丁基-1H-1,2,4-三唑-1-基)甲基][1,1'-联苯]-2-基]]羰基肼(如下所示)是一个例子:##STR1##