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.
公式为##STR1##的[(5-氧代-2-吡咯基)甲基]环己烷乙酰胺,其中R.sub.1为氢、低烷基或芳基-低烷基;R.sub.2为氢、低烷基、芳基、芳基-低烷基、##STR2##其中R.sub.5和R.sub.6为氢、低烷基或芳基-低烷基;R.sub.3和R.sub.4独立地为氢、低烷基或芳基-低烷基;以及其对映体、二对映异构体和拉氏体,当R.sub.2为##STR3##时,其药用酸盐均被描述。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记忆障碍相关的记忆缺陷方面是有用的。