申请人:Ciba-Geigy Corporation
公开号:US05545631A1
公开(公告)日:1996-08-13
Compounds having GABA.sub.B -antagonistic properties, for example those of formula I ##STR1## wherein one of the radicals R.sub.1, R.sub.2 and R.sub.3 is hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another is hydrogen or, in the case of R.sub.1 or R.sub.2, hydroxy or, in the case of R.sub.1, halogen or, in the case of R.sub.2 together with R.sub.2 ', oxo, and the remaining radical is hydrogen, R.sub.1 ' is hydrogen or halogen, R.sub.2 ' is hydrogen, hydroxy or, together with R.sub.2, is oxo, R.sub.4 and R.sub.5 are hydrogen or R.sub.4 is an araliphatic or heteroarylaliphatic radical and R.sub.5 is hydrogen or an aliphatic radical, and R is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic, heteroarylaliphatic or aromatic radical having at least 2 carbon atoms or, when R.sub.1 is hydrogen or hydroxy, R.sub.2 is an aromatic radical and R.sub.1 ', R.sub.2 ' and R.sub.3 are hydrogen. R is methyl, and their pharmaceutically acceptable salts, can be used as active ingredients in medicaments for the treatment of epilepsies of the "petit mal" type. The invention relates also to novel compounds of formula I and processes for the preparation thereof.
具有
GABA.sub.B-拮抗作用的化合物,例如式I的化合物##
STR1##
其中R.sub.1,R.sub.2和R.sub.3中的一个是
氢或
脂肪族,环
脂肪族,芳基
脂肪族或芳香族基,另一个是
氢或,在R.sub.1或R.sub.2的情况下,羟基或,在R.sub.1的情况下,卤素或,在R.sub.2与R.sub.2'的情况下,是
氧代,其余基团是
氢,R.sub.1'是
氢或卤素,R.sub.2'是
氢,羟基或与R.sub.2一起是
氧代,R.sub.4和R.sub.5是
氢或R.sub.4是芳基
脂肪族或杂环芳基
脂肪族基,R.sub.5是
氢或
脂肪族基,R是至少具有2个
碳原子的
脂肪族,环
脂肪族,环
脂肪族-
脂肪族,芳基
脂肪族,杂环芳基
脂肪族或芳香族基,当R.sub.1为
氢或羟基时,R.sub.2是芳基基团,R.sub.1',R.sub.2'和R.sub.3为
氢。其中R为
甲基,以及它们的药学上可接受的盐,可用作治疗“小发作”型癫痫的药物的活性成分。本发明还涉及式I的新化合物及其制备方法。