申请人:Hoechst-Roussel Pharmaceuticals Inc.
公开号:US05204480A1
公开(公告)日:1993-04-20
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, ##STR5## R.sub.7 and R.sub.8 being independently loweralkyl or alternatively the group ##STR6## taken as a whole is ##STR7## R.sub.3 is hydrogen is loweralkyl; and R.sub.4 is hydrogen or loweralkyl; which compounds are useful as analgesic agents and also for treating various memory dysfunctions.
描述了式子为##STR1##的化合物,其中n为1、2或3;R.sub.1为氢、甲酰、较低烷基羰基、芳基较低烷基羰基、较低烷基、芳基较低烷基、##STR2## R.sub.5和R.sub.6分别独立地为较低烷基或作为整体为##STR3##;R.sub.2为氢、较低烷基、较低烯基、芳基较低烷基、--CH.sub.2 C.tbd.CH、##STR5## R.sub.7和R.sub.8分别独立地为较低烷基或作为整体为##STR6##;R.sub.3为氢或较低烷基;R.sub.4为氢或较低烷基。这些化合物可用作镇痛剂,并且还可用于治疗各种记忆障碍。