The present invention relates to (1indanon-2-yl)methylpiperidines of the formula
 wherein R is hydrogen, loweralkyl, or a group of the formula
 R₁ is hydrogen or a group of the formula
 W, X, and Y are hydrogen, loweralkyl, loweralkoxy, halogen, nitro, or trifluoromethyl; n is 1 or 2; the optical isomers thereof, or the pharmaceutically acceptable acid addition salts thereof, which are useful in relieving memory dysfunction, alone or in combination with inert adjuvants, and are thus indicated in the treatment of Alzheimer's disease.
                            本发明涉及式中的(1-
茚满-2-基)甲基
哌啶
 其中 R 是氢、低级烷基或式中的基团
 R₁是氢或式中的基团
 W、X 和 Y 是氢、低级烷基、低级烷氧基、卤素、硝基或三
氟甲基;n 是 1 或 2;其光学异构体或其药学上可接受的酸加成盐,可单独或与惰性佐剂结合用于缓解记忆功能障碍,因此适用于治疗阿尔茨海默病。