申请人:Hoechst-Roussel Pharmaceuticals, Inc.
公开号:US04843079A1
公开(公告)日:1989-06-27
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-bridge arylloweralkyl, or oxygen-bridged diaryllowerallyl; A is a direct bond or (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.6 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.
披露了具有以下结构的化合物:其中n为1-4;R为氢、较低烷基或较低烷基羰基;R.sub.1为氢、较低烷基、较低烷基羰基、芳基、二较低烷基氨基较低烷基、芳基较低烷基、二芳基较低烷基、氧桥芳基较低烷基或氧桥二芳基烯基;A为直链键或(CHR.sub.3).sub.m,其中m为1-3;X为氢、较低烷基、环烷烃、较低烷氧基、卤素、羟基、硝基、三氟甲基、甲酰基、较低烷基羰基、芳基羰基、-SH、较低烷硫基、-NHCOR.sub.4或-NR.sub.5 R.sub.6,其中R.sub.4为氢或较低烷基,R.sub.6和R.sub.6分别为氢、较低烷基或环烷烃;Y为O、S或NR.sub.7;每个R.sub.2、每个R.sub.3和R.sub.7独立地为氢或较低烷基,或者两者组成至少五个原子的环的一部分的亚甲基或乙烯基;其立体、光学和几何异构体,以及其药学上可接受的酸盐,可用于增强记忆。