申请人:Hoechst-Roussel Pharmaceuticals Inc.
公开号:US05037833A1
公开(公告)日:1991-08-06
There are disclosed novel compounds having the formula, ##STR1## wherein, m is an integer of 0-3; n is an integer of 1-4; R.sub.1 is hydrogen, alkyl, cycloalkyl, arylloweralkyl, aryl, naphthyl, furyl, thienyl, pyridinyl or pyrrolyl; each R.sub.2 and R.sub.3 are independently hydrogen, loweralkyl or arylloweralkyl, or alternatively R.sub.2 and R.sub.3 taken together form a methylene or ethylene bridge; X is hydrogen, loweralkyl, cycloalkyl, loweralkoxy, halogen, hydroxy, nitro, trifluoromethyl, formyl, loweralkoxycarbonyl, 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 CH.sub.2, CH.dbd.CH, O, S or NR.sub.7, R.sub.7 being hydrogen, loweralkyl or arylloweralkyl; with the proviso that the number of said methylene or ethylene bridge shall not exceed 1 and that when Y is CH.sub.2, one and only one combination of R.sub.2 and R.sub.3 must constitute a methylene or ethylene bridge; stereo, optical and geometrical isomers thereof, and pharmaceutically acceptable acid addition salts thereof, which are useful for enhancing memory.
披露了具有以下公式的新颖化合物:##STR1## 其中,m为0-3之间的整数;n为1-4之间的整数;R.sub.1是氢、烷基、环烷基、芳基低烷基、芳基、萘基、呋喃基、噻吩基、吡啶基或吡咯基;每个R.sub.2和R.sub.3独立的是氢、低烷基或芳基低烷基,或者R.sub.2和R.sub.3共同形成一个亚甲基或乙基桥;X是氢、低烷基、环烷基、低烷氧基、卤素、羟基、硝基、三氟甲基、甲酰基、低烷氧基羰基、芳基羰基、--SH、低烷基亚硫酰基、--NHCOR.sub.4或--NR.sub.5 R.sub.6,R.sub.4是氢或低烷基,R.sub.5和R.sub.6独立的是氢、低烷基或环烷基;Y是CH.sub.2,CH.dbd.CH,O,S或NR.sub.7,R.sub.7是氢、低烷基或芳基低烷基;前提是所说的亚甲基或乙基桥的数量不超过1,并且当Y是CH.sub.2时,R.sub.2和R.sub.3的一个且仅一个组合必须构成一个亚甲基或乙基桥;其立体、光学和几何异构体,以及药用可接受的酸加成盐,这些化合物用于增强记忆。