申请人:LG Chemical Ltd.
公开号:US05747535A1
公开(公告)日:1998-05-05
The present invention relates to a novel selective thrombin inhibitor having the following formula (I), which is also effective by oral administration: ##STR1## in which R.sup.1 represents acetyl substituted with aryl or aryloxy, or represents sulfonyl substituted with substituted or unsubstituted aryl or N-containing heterocyclic group, X represents a group of formula ##STR2## R.sup.2 and R.sup.3 independently of one another represent hydrogen; cycloalkyl substituted or unsubstituted with carboxyl or alkoxycarbonyl; arylalkyloxy; hydroxy; or lower alkyl substituted or unsubstituted with carboxyl, alkoxycarbonyl or hydroxy, or R.sup.2 and R.sup.3 together with nitrogen atom to which they are attached can form a piperidine group substituted with carboxyl or alkoxycarbonyl, R.sup.4 represents hydrogen, lower alkyl or lower alkoxy, R.sup.5 represents alkanesulfonyl; alkoxycarbonyl; alkylcarbonyl; formyl; lower alkyl; aryl substituted or unsubstituted with alkoxy or haloalkyl; or hydroxy-substituted lower alkyl, and R.sup.6 and R.sup.7 independently of one another represent hydrogen, lower alkyl or amino, and to a process for preparation thereof and a pharmaceutical composition for thrombin inhibition which comprises the compound of formula (I) as an active ingredient.
本发明涉及一种具有以下式(I)的新型选择性凝血酶抑制剂,该抑制剂也可通过口服给药起效:##STR1## 其中R.sup.1代表乙酰基取代的芳基或芳氧基,或者代表磺酰基取代的取代或未取代的芳基或含氮杂环基团,X代表式的基团##STR2## R.sup.2和R.sup.3彼此独立地代表氢;被羧基或烷氧羰基取代或未取代的环烷基;芳基烷氧基;羟基;或被羧基、烷氧羰基或羟基取代或未取代的较低烷基,或者R.sup.2和R.sup.3与它们连接的氮原子一起可以形成被羧基或烷氧羰基取代的哌啶基,R.sup.4代表氢、较低烷基或较低烷氧基,R.sup.5代表烷基磺酰基;烷氧羰基;烷基羰基;甲酰基;较低烷基;芳基取代或未取代的烷氧基或卤代烷基;或羟基取代的较低烷基,R.sup.6和R.sup.7彼此独立地代表氢、较低烷基或氨基,以及其制备方法和包含式(I)化合物作为活性成分的用于凝血酶抑制的药物组合物。