申请人:AKZO N.V.
公开号:US05254575A1
公开(公告)日:1993-10-19
The invention concerns a 4-aryl-thiazole or imidazole derivative having the formula I ##STR1## wherein X is 0 or NOH, Y is S or NR.sub.3, Ar is a group selected from phenyl, naphthyl, tetrahydronaphthyl, and biphenyl, R is one to four substituents independently selected from hydrogen, hydroxy, lower alkyl, lower alkoxy, lower thioalkyl, cycloalkyl, halogen, CF.sub.3, NO.sub.2, and O-ALK-NR.sub.1 R.sub.2, in which ALK is a saturated aliphatic hydrocarbon group having 2-6 carbon atoms, and R.sub.1 and R.sub.2 are independently hydrogen or lower alkyl, or form, together with the nitrogen atom to which they are bonded, a heterocyclic ring, and R.sub.3 is hydrogen or a lower alkyl; or a pharmaceutically acceptable salt thereof, with the proviso that 4-(4-chlorophenyl)-thiazole-2-carboxamide is excluded. The compounds according to the invention increase the sensitivity of cardiac myofibrils to calcium and possess phosphodiesterase inhibitory activity and bronchodilator activity, and are useful for the treatment of patients suffering from heart failure and asthma.
该发明涉及具有以下式I的4-芳基噻唑或咪唑衍生物##STR1##其中X为0或NOH,Y为S或NR.sub.3,Ar为从苯基、萘基、四氢萘基和联苯基中选择的基团,R为独立选择的一个到四个取代基,选自氢、羟基、低烷基、低烷氧基、低硫代烷基、环烷基、卤素、CF.sub.3、NO.sub.2和O-ALK-NR.sub.1 R.sub.2,其中ALK为具有2-6个碳原子的饱和脂肪族碳氢基团,R.sub.1和R.sub.2独立地为氢或低烷基,或者与它们结合,与它们结合形成与氮原子共价的杂环,R.sub.3为氢或低烷基;或其药学上可接受的盐,但排除4-(4-氯苯基)-噻唑-2-甲酰胺。根据该发明的化合物增加心肌原纤维对钙的敏感性,并具有磷酸二酯酶抑制活性和支气管扩张活性,适用于治疗患有心力衰竭和哮喘的患者。