申请人:Hoechst-Roussel Pharmaceuticals Incorporated
公开号:US05206387A1
公开(公告)日:1993-04-27
There are disclosed compounds having the formula ##STR1## wherein n is 1-4; R is hydrogen, loweralkyl or loweralkylcarbonyl; R.sub.1 is hydrogen, loweralkyl, loweralkylcarbonyl, aryl, diloweralkylaminoloweralkyl, arylloweralkyl, diarylloweralkyl, oxygen-bridged arylloweralkyl, or oxygen-bridged diaryllowerallyl; A is a direct bond of (CHR.sub.3).sub.m, m being 1-3; X is hydrogen, loweralkyl, cycloalkyl, loweralkoxy, halogen, hydroxy, nitro, trifluoromethyl, formyl, loweralkylcarbonyl, arylcarbonyl, --SH, loweralkylthio, --NHCOR.sub.4 or --NR.sub.5 R.sub.6, R.sub.4 being hydrogen or loweralkyl, and R.sub.5 and R.sub.6 being independently hydrogen, loweralkyl or cycloalkyl; Y is O, S or NR.sub.7 ; and each R.sub.2, each R.sub.3 and R.sub.7 are independently hydrogen or loweralkyl, or taken two at a time form a methylene or ethylene group constituting a part of a ring of at least five atoms; stereo, optical and geometrical isomers thereof, and pharmaceutically acceptable acid addition salts thereof, which are useful for enhancing memory.
公开了具有以下式子的化合物:##STR1## 其中n为1-4;R为氢,低碳基或低碳基羰基;R.sub.1为氢,低碳基,低碳基羰基,芳基,二低碳基氨基低碳基,芳基低碳基,二芳基低碳基,氧桥芳基低碳基或氧桥二芳基低烯基;A为(CHR.sub.3).sub.m的直接键,其中m为1-3;X为氢,低碳基,环烷基,低碳氧基,卤素,羟基,硝基,三氟甲基,甲酰基,低碳基羰基,芳基羰基,--SH,低碳基硫基,--NHCOR.sub.4或--NR.sub.5R.sub.6,其中R.sub.4为氢或低碳基,R.sub.5和R.sub.6独立地为氢,低碳基或环烷基;Y为O,S或NR.sub.7;每个R.sub.2,每个R.sub.3和R.sub.7独立地为氢或低碳基,或者两个取自其中一个甲基或乙烯基团,构成至少五个原子的环的一部分;它们的立体、光学和几何异构体以及药学上可接受的酸盐,对于增强记忆有用。