申请人:Hoffmann-La Roche Inc.
公开号:US05015653A1
公开(公告)日:1991-05-14
[(5-oxo-2-pyrrolidinyl)methyl]cyclohexaneacetamides of the formula ##STR1## wherein R.sub.1 is hydrogen, lower alkyl or aryl-lower alkyl; R.sub.2 is hydrogen, lower alkyl, aryl, aryl-lower alkyl, ##STR2## wherein R.sub.5 and R.sub.6 are hydrogen, lower alkyl or aryl-lower alkyl; R.sub.3 and R.sub.4, independently, are hydrogen, lower alkyl, or aryl-lower alkyl; and enantiomers, diastereomers, and racemates thereof, and, when R.sub.2 is ##STR3## pharmaceutically acceptable acid addition salts thereof, are described. The compounds of formula I exhibit cognitive enhancement and antiamnestic activity and are therefore useful, for example, in treating memory deficits associated with Alzheimer's disease or age-associated memory impairment.
化合物的名称为[(5-氧代-2-吡咯烷基)甲基]环己烷乙酰胺,化学式为##STR1## 其中R.sub.1是氢、低碳基或芳基-低碳基;R.sub.2是氢、低碳基、芳基、芳基-低碳基、##STR2## 其中R.sub.5和R.sub.6是氢、低碳基或芳基-低碳基;R.sub.3和R.sub.4,独立地,是氢、低碳基或芳基-低碳基;以及其对映异构体、顺反异构体和混合物,当R.sub.2是##STR3## 时,其药学上可接受的酸加盐也被描述。公式I的化合物表现出认知增强和抗遗忘活性,因此在治疗与阿尔茨海默病或年龄相关的记忆障碍相关的记忆缺陷方面非常有用。