申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US05430022A1
公开(公告)日:1995-07-04
Peptide compounds of the formula (I') ##STR1## in which R.sup.1 is acyl, R.sup.2 is lower alkyl, cyclo(lower)alkyl(lower)alkyl or optionally substituted heterocyclic(lower)alkyl, R.sup.3 is optionally substituted heterocyclic(lower)alkyl or optionally substituted ar(lower)alkyl, R.sup.4 is lower alkyl, amino(lower)alkyl, protected amino(lower)alkyl, carboxy(lower)alkyl, protected carboxy(lower)alkyl or optionally substituted heterocyclic(lower)alkyl, R.sup.5 is carboxy, protected carboxy, carboxy(lower)alkyl or protected carboxy(lower)alkyl, R.sup.6 is hydrogen, lower alkyl, C.sub.6-10 ar(lower)alkyl amino(lower)alkyl, protected amino(lower)alkyl, carboxy(lower)alkyl, protected carboxy(lower)alkyl, or heterocyclic(lower)alkyl, R.sup.7 is hydrogen or lower alkyl, and A is --O--, --NH--, lower alkylimino or lower alkylene, or a pharmaceutically acceptable salt thereof are disclosed. The compounds can be used to treat and prevent endothelin mediated diseases such as hypertension. The preparation of such peptides is also disclosed.
公式(I')的多肽化合物如下:##STR1## 其中R.sup.1是酰基,R.sup.2是较低的烷基,环(较低)烷基(较低)烷基或可选取代的杂环(较低)烷基,R.sup.3是可选取代的杂环(较低)烷基或可选取代的芳基(较低)烷基,R.sup.4是较低的烷基,氨基(较低)烷基,保护的氨基(较低)烷基,羧基(较低)烷基,保护的羧基(较低)烷基或可选取代的杂环(较低)烷基,R.sup.5是羧基,保护的羧基,羧基(较低)烷基或保护的羧基(较低)烷基,R.sup.6是氢,较低的烷基,C.sub.6-10芳基(较低)烷基氨基(较低)烷基,保护的氨基(较低)烷基,羧基(较低)烷基,保护的羧基(较低)烷基或杂环(较低)烷基,R.sup.7是氢或较低的烷基,A是--O--,--NH--,较低烷基亚胺基或较低烷基烷基,或其药学上可接受的盐。这些化合物可用于治疗和预防内皮素介导的疾病,如高血压。还公开了这些肽的制备方法。