申请人:Novo Nordisk A/S
公开号:US05262427A1
公开(公告)日:1993-11-16
Azacyclic compounds selected from the group consisting of ##STR1## wherein R.sup.1 is H or C.sub.1-6 -alkyl R.sup.3 is ##STR2## wherein R' is C.sub.3-8 -alkyl, cyclopropyl, C.sub.4-8 -cycloalkyl, benzyl which may be substituted, or C.sub.1-4 -alkoxy-C.sub.1-4 -alkyl, and R" is H or C.sub.1-8 -alkyl or C.sub.1-6 -alkoxy or C.sub.1-4 -alkoxy-C.sub.1-4 -alkyl or aryl, and R'" is H or C.sub.1-6 -alkyl or C.sub.4-8 -cycloalkyl; and R.sup.4 is H, C.sub.1-8 -alkyl or Cl; and ##STR3## provided that R.sup.3 is not ##STR4## wherein R' is C.sub.3-8 -alkyl, cyclopropyl or C.sub.1-3 -alkoxymethyl, and provided that R.sup.3 is not --CH.dbd.N--OR'", wherein R'" is H or C.sub.1-6 -alkyl, when the compounds of formula I is ##STR5## and a salt thereof with a pharmaceutically-acceptable acid. The new compounds are useful in improving the cognitive functions of the forebrain and hippocampus of mammals, and are useful in the treatment of Alzheimer's disease.
从所述组中选择的螺环化合物,其中R.sup.1为H或C.sub.1-6-烷基,R.sup.3为##STR2##其中R'为C.sub.3-8-烷基、环丙基、C.sub.4-8-环烷基、苄基(可能被取代)或C.sub.1-4-烷氧基-C.sub.1-4-烷基,R"为H或C.sub.1-8-烷基或C.sub.1-6-烷氧基或C.sub.1-4-烷氧基-C.sub.1-4-烷基或芳基,R'"为H或C.sub.1-6-烷基或C.sub.4-8-环烷基;R.sup.4为H、C.sub.1-8-烷基或Cl;和##STR3##条件是R.sup.3不是##STR4##其中R'为C.sub.3-8-烷基、环丙基或C.sub.1-3-烷氧甲基,并且条件是R.sup.3不是--CH.dbd.N--OR'",其中R'"为H或C.sub.1-6-烷基,当公式I的化合物为##STR5##以及其与药学上可接受的酸盐。这些新化合物可用于改善哺乳动物前脑和海马的认知功能,并且可用于治疗阿尔茨海默病。