申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:US05972946A1
公开(公告)日:1999-10-26
An acetamide derivative of the formula (I): ##STR1## wherein X is --0-- or --NR.sub.4 --, R.sub.1 is H, lower alkyl, lower alkenyl or cyclolalkyl-lower-alkyl, R.sub.2 is lower alkyl, cycloalkyl, substituted or unsubstituted phenyl, etc., R.sub.3 is H, lower alkyl or hydroxy-lower alkyl, R.sub.4 is H, lower alkyl, etc., R.sub.5 is H, lower alkyl, lower alkenyl, hydroxy-lower alkyl, etc., R.sub.6 is H, lower alkyl, CF.sub.3, substituted or unsubstituted phenyl, or R.sub.5 and R.sub.6 may optionally combine to form --(CH.sub.2)n--, R.sub.7 is H, halogen, lower alkyl, lower alkoxy, CF.sub.3, OH, NH.sub.2, etc., R.sub.8 is H, halogen, lower alkyl or lower alkoxy, or a pharmaceutically acceptable acid addition salt thereof. The compounds of the present invention selectively act on the peripheral-type BZ.omega..sub.3 -receptor, and show excellent pharmacological activities, and hence, they are useful in the prophylaxis or treatment of central nervous disorders such as anxiety-related diseases, depression, epilepsy, etc.
公式(I)的乙酰胺衍生物:##STR1## 其中X为--O--或--NR.sub.4 --,R.sub.1为H,低碳基,低碳烯基或环烷基-低碳基,R.sub.2为低碳基,环烷基,取代或未取代的苯基等,R.sub.3为H,低碳基或羟基-低碳基,R.sub.4为H,低碳基等,R.sub.5为H,低碳基,低碳烯基,羟基-低碳基等,R.sub.6为H,低碳基,CF.sub.3,取代或未取代的苯基,或R.sub.5和R.sub.6可以选择性地结合形成--(CH.sub.2)n--,R.sub.7为H,卤素,低碳基,低碳氧基,CF.sub.3,OH,NH.sub.2等,R.sub.8为H,卤素,低碳基或低碳氧基,或其药学上可接受的酸盐。本发明的化合物选择性地作用于外周型BZ.omega..sub.3受体,并显示出优异的药理活性,因此它们在预防或治疗诸如焦虑相关疾病,抑郁症,癫痫等中枢神经系统疾病方面是有用的。