申请人:Hoechst-Roussel Pharmaceuticals Inc.
公开号:US04978663A1
公开(公告)日:1990-12-18
There are described compounds of the formula ##STR1## where n is 1,2 or 3; R.sub.1 is hydrogen, formyl, loweralkylcarbonyl, arylloweralkylcarbonyl, loweralkyl, arylloweralkyl, ##STR2## R.sub.5 and R.sub.6 being independently loweralkyl or alternatively the group ##STR3## taken as a whole is ##STR4## R.sub.2 is hydrogen, loweralkyl, loweralkenyl, arylloweralkyl, --CH.sub.2 C.tbd.CH, R.sub.7 and R.sub.8 being independently loweralkyl or alternatively the group ##STR5## taken as a whole is ##STR6## R.sub.3 is hydrogen or loweralkyl; and R.sub.4 is hydrogen or loweralkyl; which compounds are useful as analgesic agents and also for treating various memory dysfunctions.
描述了公式##STR1##的化合物,其中n为1、2或3;R.sub.1是氢、甲酰基、低级烷基碳酰基、芳基低级烷基碳酰基、低级烷基、芳基低级烷基、##STR2##;R.sub.5和R.sub.6独立地为低级烷基,或者整个组##STR3##为##STR4##;R.sub.2是氢、低级烷基、低级烯基、芳基低级烷基、--CH.sub.2 C.tbd.CH,R.sub.7和R.sub.8独立地为低级烷基,或者整个组##STR5##为##STR6##;R.sub.3是氢或低级烷基;R.sub.4是氢或低级烷基;这些化合物作为镇痛剂是有用的,也用于治疗各种记忆功能障碍。